CONVERTIBLE SUBORDINATED DEBENTURE



THE SECURITIES REPRESENTED HEREBY HAVE BEEN ACQUIRED FOR INVESTMENT AND HAVE NOT
BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED,  OR ANY APPLICABLE
STATE  SECURITIES  LAWS. SUCH SECURITIES AND ANY SECURITIES  ISSUED HEREUNDER OR
WITH RESPECT HERETO MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED,  HYPOTHECATED OR
OTHERWISE  TRANSFERRED  IN THE  ABSENCE  OF SUCH  REGISTRATION  OR AN  EXEMPTION
THEREFROM  UNDER  SAID  ACT  AND  APPLICABLE  LAWS  OR  AN  OPINION  OF  COUNSEL
SATISFACTORY TO BORROWER THAT SUCH REGISTRATION IS NOT REQUIRED.

         FOR VALUE RECEIVED,  Ravenswood Winery, Inc., a California  corporation
("Borrower"),   hereby   promises   to  pay   __________________________________
("Holder"),   or  order,  the  "Principal"  sum  of   __________________________
($_______________________).  Such  payment  shall be made no later  that 5 p.m.,
Pacific time on December 31, 2008 ("Maturity"). Conversion of this Debenture, as
provided in Article 3 hereto, shall constitute payment in full of all Principal.
Borrower  shall also pay interest  upon the Principal  outstanding  from time to
time in an amount equal to the index rate given to prime commercial customers by
the Bank of America NT&SA, San Francisco, California (the "Prime Rate") plus one
percent (1%) per annum (the "Interest Rate"),  subject to adjustment as provided
in this paragraph, from the date hereof until this Debenture is converted or all
Principal is paid,  whichever first occurs.  Interest shall be payable quarterly
in arrears,  commencing with the first payment on January 15, 1999. The Interest
Rate shall be subject to  adjustment  18 months from the date hereof,  and every
eighteen  months  thereafter,  to one percent (1%) over the Prime Rate (each, an
"Interest Rate Adjustment"); provided, however, that no individual Interest Rate
Adjustment  shall exceed 2%, and provided further that the maximum Interest Rate
shall  be 11%.  Notwithstanding  any  other  provision  of this  Debenture,  the
Interest Rate shall not exceed the


                                       1


maximum rate permitted  under  applicable law. Both principal and interest shall
be payable in lawful money of the United  States of America at the address which
Holder has provided to Borrower in writing.

         The securities  represented  hereby have not been registered  under the
Securities  Act of 1933 (the  "Act") or any other  federal  or state  securities
laws, and may not be resold,  transferred,  pledged,  hypothecated  or otherwise
assigned until the restrictions in Article 7 have been satisfied.

                                   ARTICLE ONE

                                  SUBORDINATION

1.1      Senior  Indebtedness.  As used  in this  Debenture,  the  term  "Senior
         Indebtedness"  shall mean the principal  amount of all  indebtedness of
         the Borrower,  regardless  of whether  incurred on, before or after the
         date of this  Debenture,  including:  (i)  Borrower's  indebtedness  to
         Pacific  Coast Farm Credit  Association,  ACA, in the form of a line of
         credit,  pursuant  to which  Borrower  may  borrow up to a  maximum  of
         $2,000,000;  (ii) Borrower's  indebtedness to Pacific Coast Farm Credit
         Association,  ACA, in the form of a loan secured by Borrower's property
         located at Gehricke Road, in the maximum  amount of  $2,665,755;  (iii)
         proposed indebtedness to be secured by Borrower's leasehold interest in
         the  proposed  Quarry  Facility,  which  is  expected  to  total  up to
         $5,000,000;  (iv) money  borrowed from any bank and evidenced by notes,
         bonds,  debentures or other written obligations,  if such notes, bonds,
         debentures or other written obligations are interest-bearing securities
         only and are not  convertible or issued in connection with the issue of
         warrants or options, whether separate or attached, or some other rights
         to receive


                                       2


         stock or participate in the earnings of Borrower in any form, including
         dividend  distributions;  and (v) any  renewals  or  extensions  of any
         indebtedness  described in (i), (ii) or (iii) above.  Borrower reserves
         the right to increase the number of its sources of bank credit, as well
         as to increase the maximum  loan  amounts.  Use of available  funds for
         payments on Senior  Indebtedness  shall not  constitute a default under
         payments due to the Holder.  Any such payments not made to Holder shall
         cumulate at the Interest Rate until paid.

1.2      Subordination.  Borrower covenants and agrees and Holder, by acceptance
         hereof, covenants,  expressly for the benefit of the present and future
         holders of Senior  Indebtedness,  that the payment of the principal and
         interest  on this  Debenture  is  expressly  subordinated  in  right of
         payment to the payment in full of principal  and interest and any fees,
         charges  or  penalties  of Senior  Indebtedness.  Upon any  terminating
         liquidation   of  assets  of  Borrower  upon  the   occurrence  of  any
         dissolution,  winding up, or liquidation, whether or not in bankruptcy,
         insolvency  or  receivership   proceedings,   Borrower  shall  not  pay
         thereafter and Holder shall not be entitled to receive thereafter,  any
         amount in respect of the principal and interest of the Debenture unless
         and until the Senior  Indebtedness  shall  have been  paid,  whether in
         cash,  property  or  securities,   by  Borrower  or  by  a  trustee  in
         bankruptcy,  a receiver or liquidating  trustee, or other person making
         such payment or distribution, whether directly to the holders of Senior
         Indebtedness,  or to their  representative or representatives,  ratably
         according  to  the  aggregate   amounts   remaining  unpaid  on  Senior
         Indebtedness held or represented by each of them.

                                       3


1.3      Rights  Against  Borrower  and  Others.   It  is  understood  that  the
         provisions of this Article One captioned  "Subordination"  are, and are
         intended to be, solely for the purpose of defining the relative  rights
         of Holder, on the one hand, and the holders of the Senior  Indebtedness
         of Borrower,  on the other hand.  Nothing contained in this Article One
         or elsewhere in this Debenture shall or is intended to impair, as among
         Borrower, its creditors other than holders of Senior Indebtedness,  and
         Holder,  the unconditional  and absolute  obligation of Borrower to pay
         Holder the principal and interest on the Debenture as and when the same
         shall become due and payable in accordance  with the terms  hereof,  or
         affect the relative rights of Holder and the creditors of the Borrower,
         other than a holder of such  Senior  Indebtedness;  nor shall  anything
         herein prevent Holder from exercising all remedies otherwise  permitted
         by  applicable  law upon default under this  Debenture,  subject to the
         rights, if any, of a holder of Senior  Indebtedness in respect to cash,
         property or  securities  of Borrower  received upon the exercise of any
         such  remedy.  Upon any payment or  distribution  of assets of Borrower
         referred to in this Article One,  Holder shall be entitled to rely upon
         any order or  decree  made by any court of  competent  jurisdiction  in
         which  any  dissolution,  winding  up,  liquidation  or  reorganization
         proceedings are pending, or upon a certificate of a liquidating trustee
         or agent or other person  making any  distribution  to Holder,  for the
         purpose of  ascertaining  the persons  entitled to  participate in such
         distribution, the holders of Senior Indebtedness and other indebtedness
         of the Borrower,  the amounts thereof or payable thereon, the amount or
         amounts  paid or  distributed  thereon  and all other  facts  pertinent
         thereto or to this Article One.


                                       4


                                   ARTICLE TWO

                                   PREPAYMENT

The  principal and interest due pursuant to this  Debenture  may be prepaid,  in
whole or in part, at any time after  expiration of the  conversion  right herein
and prior to maturity, at the option of Borrower.  Each prepayment shall include
the principal amount to be prepaid plus all interest due to the prepayment date.
In the case of partial prepayment, the amount and other details thereof shall be
noted on this Debenture.

                                  ARTICLE THREE

                         CONVERSION AND PURCHASE RIGHTS

3.1      Conversion Right.  Holder shall have the right, from and after the date
         of this Debenture until any time at or prior to 5 o'clock p.m.  Pacific
         time on December 31, 2003,  to convert all, and not a portion,  of this
         Debenture into fully paid and nonassessable shares of the Capital Stock
         of Borrower. If conversion is not requested at or before this time, the
         conversion  right shall terminate and be of no further force or effect.
         Subject to the terms of Article Two, the  indebtedness  represented  by
         this  Debenture has been paid or otherwise  discharged,  the rights set
         forth in this  Debenture  shall not survive such payment or  discharge,
         including  but not  limited  to,  the right to convert  into  shares of
         Capital Stock of Borrower. "Capital Stock" shall mean the common voting
         stock of Borrower. Upon the surrender of this Debenture, accompanied by
         the Holder's  written  request for  conversion,  which request shall be
         irrevocable,  Borrower  shall pay within 30 days all  interest  accrued
         hereon  to the date of  conversion  and  issue  and  deliver  to Holder
         certificates, evidencing such shares of stock as hereinafter set forth.

                                       5


                  Subject to readjustment as provided in Section 3.2 hereof, the
         Conversion Price  (hereinafter,  the "Conversion  Price") and number of
         shares  issuable upon conversion  shall be determined as follows:  Each
         $10,000  Debenture  may be converted to 14.286  shares of Capital Stock
         for a price of $700 per share.

3.2      Adjustment of Conversion Terms. The Conversion Price and the number and
         kind of  shares to be issued to  Holder  upon  conversion  pursuant  to
         Section   3.1  shall  be   adjusted   to  reflect  the  effect  of  any
         consolidation,  merger,  sale of  assets,  reclassification  of shares,
         share  issuance or any other change in the status of the Capital  Stock
         or the rights or  privileges  of holders of the Capital  Stock  (herein
         called  a  "Change"  in  the  Capital  Stock)  which  occurs  prior  to
         conversion. Such adjustment to the shares of Capital Stock to be issued
         upon a  conversion  to reflect a Change shall be  calculated  as if the
         Debenture  had been  converted  and the  Capital  Stock  into which the
         Debenture is convertible was issued and outstanding  immediately  prior
         to the Change and then, was adjusted,  like all other shares of Capital
         Stock then  outstanding,  to reflect  the Change.  Accordingly,  if the
         Debenture is then converted after a Change, the number of shares issued
         in the  conversion  shall  reflect the Change.  After  conversion,  the
         shares issued in the conversion shall be treated like all other similar
         shares outstanding when any subsequent changes occur.

3.3      Cash  Distributions.  No  adjustment  as a result of cash  dividends or
         interest on Capital  Stock into which this  Debenture  can be converted
         will be made to the Conversion Price at which the number of shares into
         which this Debenture can be converted.


                                       6


3.4      No Fractional  Shares.  Fractional shares of Capital Stock shall not be
         issued in connection with any conversion hereunder. If after conversion
         and taking into account any Change,  there shall result any  fractional
         share,  Borrower shall pay out such fractional share to Holder in cash.
         The value of such fractional  share shall be determined based upon: (i)
         the last  reported  sales price of a share of Capital Stock on the last
         trading  day prior to the  conversion  date on the  principal  national
         securities  exchange on which the shares of Capital Stock are listed or
         admitted  to  trading;  (ii) if the shares of Capital  Stock are not so
         listed or  admitted  to  trading,  the  average of the  highest bid and
         lowest  asked  prices on the last  trading day prior to the  conversion
         date on the  Nasdaq  Stock  Market;  or  (iii)  if no such  independent
         quotations  exist,  as determined in good faith by Borrower's  board of
         directors.

3.5      Authorized  Shares.  Borrower  covenants  that  during  the  period the
         conversion right exists,  Borrower shall reserve  sufficient  shares of
         its authorized  and unissued  Capital Stock to provide for the issuance
         of Capital Stock upon the conversion of this Debenture. Borrower agrees
         that the issuance of this Debenture shall  constitute full authority to
         its  officers  who  are  charged  with  the  duty  of  executing  stock
         certificates to execute and issue the necessary certificates for shares
         of Capital Stock upon the conversion of this Debenture.

3.6      Method of  Conversion.  This  Debenture  may be  converted by Holder in
         whole, only, by the surrender of this Debenture at the principal office
         of Borrower as provided in Section 3.1 hereto.


                                       7


                                  ARTICLE FOUR

                         REPRESENTATIONS AND WARRANTIES

         Borrower represents and warrants that:

4.1      Existence and Rights. As of the date hereof,  Borrower is a corporation
         duly  organized and existing  under the laws of the State of California
         without  limit as to the duration of its  existence,  and is authorized
         and in  good  standing  to do  business  in the  State  of  California.
         Borrower  has  corporate  powers  and  adequate  authority,  rights and
         franchises  to own its  property  and to carry on its  business  as now
         conducted,  and is duly qualified and in good standing in each state in
         which the character of the properties owned by it herein or the conduct
         of its business makes such  qualification  necessary,  and Borrower has
         the corporate power and adequate  authority to issue this Debenture and
         the underlying shares of Capital Stock.

4.2      Debenture Authorized.  The execution and delivery of this Debenture and
         the  performance  by Borrower of its  obligations  hereunder are not in
         contravention  of or in conflict with any law or regulation or any term
         or provision of Borrower's Articles of Incorporation or Bylaws, and are
         duly  authorized  and do not  require  the  consent or  approval of any
         governmental body or other regulatory authority;  and this Debenture is
         the valid,  binding and legally  enforceable  obligation of Borrower in
         accordance with its terms.

4.3      No Conflict. The execution,  delivery and performance of this Debenture
         do  not  contravene  or  conflict  with  any  agreement,  indenture  or
         undertaking  to which  Borrower is


                                       8


         a party or by which it or any of its property may be bound or affected,
         and do not cause any lien, charge or other encumbrance to be created or
         imposed upon any such property by reason thereof.

4.4      Shares  Outstanding.  As of  the  date  hereof,  Borrower's  authorized
         Capital Stock consists of 1,000,000  shares,  of which 56,362.8  shares
         are outstanding.  As of the date of this Debenture, other than 4,805.56
         and 2,410.729  shares of Capital  Stock  reserved for issuance upon the
         conversion of those certain Subordinated  Convertible Debentures issued
         by Borrower in December of 1994 and December  31,  1998,  respectively,
         there are no other  shares of Capital  Stock  reserved  for issuance or
         subject to any agreement,  right, option or warrant with respect to the
         sale or issuance thereof by Borrower.

                                  ARTICLE FIVE

                               RECORDS AND REPORTS


Borrower shall maintain a standard and modern system of accounting, applied on a
consistent  basis.  Within a reasonable  period of time after the termination of
Borrower's fiscal year,  Borrower  shall  prepare  annual  financial  statements
pursuant to Generally Accepted Accounting Principles,  based on Borrower's books
and  records.   These  annual  financial  statements  shall  be  audited  by  an
independent accountant. So long as Holder holds this Debenture, or Capital Stock
issued upon conversion of this Debenture, Holder shall have access to Borrower's
books and records, as provided under California law.

                                       9


                                   ARTICLE SIX

                                EVENTS OF DEFAULT


Except as  provided  in  Article  One,  the  failure  to pay an  installment  of
principal  or interest  hereon when due,  and  continued  failure to pay after a
period of ten  business  days has lapsed  from the date of  delivery  of written
notice therefor from Holder to Borrower shall constitute a default hereunder.

                                  ARTICLE SEVEN

                                    TRANSFERS


7.1      Investment  Representation.  Holder hereby represents and warrants that
         it has acquired this  Debenture for the purpose of investment  and with
         no present intent to sell or to distribute the same. Should it exercise
         the  conversion  privilege  contained  herein,  any  Capital  Stock  of
         Borrower so acquired will be acquired with the same investment intent.

7.2      Right of First Offer.  Prior to the expiration of the conversion right,
         Holder shall not be entitled to transfer this Debenture or any interest
         in it without  first  offering  to  transfer  the entire  Debenture  to
         Borrower for a price and upon terms  chosen by Holder,  all as provided
         in this Section 7.2.

                  Any attempted  transfer that does not comply with this section
         shall be void and of no force or effect.  Without  any other  remedies,
         Borrower shall be entitled to an injunction  requiring Holder to comply
         with  the  provisions  of  this  section.  The  only  exception  to the
         restriction  on transfer in this section is for  transfers at death and
         certain lifetime  transfers to family members,  as described in Section
         7.3 hereto.

                                       10


                  If Holder wishes to transfer  this  Debenture in a transaction
         other than as  described  in  Section  7.3  hereto,  Holder  shall,  in
         writing, first offer this Debenture to Borrower,  stating the price and
         terms upon which Holder  offers to transfer the  Debenture to Borrower.
         Borrower  shall have fifteen (15)  business days in which to accept the
         offer and a total of thirty  (30)  business  days in which to close the
         transfer.  Borrower  shall  also  have the right to  designate  a third
         person or  persons  to accept  the  offer;  however,  once the offer is
         accepted,  Borrower  and all such  designated  third  persons  shall be
         jointly and  severally  liable with respect to the  performance  of the
         obligations hereunder.

                  If Borrower  does not accept  Holder's  offer,  or designate a
         third  party or parties to accept  Holder's  offer  within the  fifteen
         business day period, Holder shall be free to transfer the Debenture for
         a price and upon terms which are no more  favorable  to the  transferee
         than those offered to Borrower.  The transfer  shall  include  Holder's
         entire  interest in the Debenture.  If a transfer is not contracted for
         within one calendar year from the date that Holder is free to offer the
         transfer to others, and closed within a total of fourteen (14) calendar
         months from that date,  then any transfer  shall require a new offer to
         Borrower by Holder.

7.3      Permissible  Transfers.  Not  withstanding  the right of first offer of
         Borrower  provided in Section 7.2 above,  Holder  shall have the right:
         (i) to transfer the entire Debenture by will to any third party or (ii)
         to  otherwise  transfer  the  entire  Debenture  to a member or members
         (holding  jointly) of Holder's  immediate  family,  including  Holder's
         children, parents, spouse, spouses parents ("Immediate Family") or to a
         trust solely for the benefit of members of Holder's  Immediate  Family.
         To transfer the Debenture under this Section

                                       11


         7.3, Holder must transfer the entire Debenture. A transferee or a group
         of transferees under this Section 7.3 shall not be entitled to transfer
         this Debenture  pursuant to this Section 7.3. As a condition  precedent
         to a transfer  under this Section 7.3, each  transferee  shall agree to
         and sign a copy of these transfer restrictions. When a transfer results
         in joint  ownership of this Debenture and the conversion  right has not
         expired,  the transferees  shall designate one member of their group to
         represent them, in writing, to Borrower.  Borrower shall be entitled to
         rely upon any agreement or  representation of such  representative.  If
         the  transferees do not designate a  representative  within thirty (30)
         days  after a request  by  Borrower,  Borrower  shall have the right to
         designate  one  of  the  transferees  as  the   representative  of  the
         transferees upon whom Borrower can rely. Subject to the sole discretion
         of  Borrower,  Borrower  may  modify  this  exception  to the  transfer
         restrictions  provided  in this  Section  7.3 in  order  to  meet  what
         Borrower considers to be appropriate estate planning goals of Holder.

7.4      Restriction on Transfer.  In addition to the  restrictions  on transfer
         provided in  Sections  7.2 and 7.3 hereto,  this  Debenture  may not be
         transferred  or assigned in whole or in part  without  compliance  with
         federal and state  securities laws by the transferor and the transferee
         or  transferees  (including  the delivery of investment  representation
         letters and legal opinions reasonably satisfactory to Borrower, if such
         are requested Borrower).

7.5      Legend. Any certificate representing Securities shall be stamped with a
         suitable  endorsement to the effect that said Securities are subject to
         the terms and  conditions of this Article 7 and stating that said terms
         and conditions are fully set forth in this Article,  a copy of which is
         on file  and  available  for  the  inspection  at the  main  office  of
         Borrower.

                                       12


                                  ARTICLE EIGHT

                                  MISCELLANEOUS


8.1      Failure or  Indulgence  Not Waiver.  No failure or delay on the part of
         Holder  hereof  in  the  exercise  of any  power,  right  or  privilege
         hereunder  shall operate as a waiver  thereof,  nor shall any single or
         partial exercise of any such power,  right or privilege  preclude other
         or further exercise thereof or of any other right,  power or privilege.
         All rights and remedies  existing  hereunder are cumulative to, and not
         exclusive of, any rights or remedies otherwise available.

8.2      Rights of  Shareholders.  Subject  to  Section  3.1 of this  Debenture,
         Holder shall not be entitled to vote or receive  dividends or be deemed
         the holder of Capital  Stock or any other  securities  of Borrower that
         may at any time be issuable on the exercise hereof for any purpose, nor
         shall anything  contained herein be construed to confer upon Holder, as
         such,  any of the rights of a  shareholder  of Borrower or any right to
         vote for the  election of  directors  or upon any matter  submitted  to
         shareholders at any meeting thereof,  or to give or withhold consent to
         any corporate  action (whether upon any  recapitalization,  issuance of
         stock,  reclassification  of stock,  change of par value,  or change of
         stock to no par value, consolidation, merger, conveyance, or otherwise)
         or  to  receive  notice  of  meetings,   or  to  receive  dividends  or
         subscription  rights or otherwise  until this Debenture shall have been
         converted as provided herein.

8.3      Notices.  Any notice herein  required or permitted to be given shall be
         in writing and may be personally serviced or sent by United States mail
         and shall be deemed to have been  given  when  deposited  in the United
         States mail  registered,  with postage prepaid and


                                       13


         properly addressed.  For the purposes hereof, the address of Holder and
         the address of Borrower shall be as follows:



                   Borrower                                    Holder
                   --------                                    ------
                   Ravenswood Winery, Inc.
                   18701 Gehricke Road
                   Sonoma, CA  95476


         Both Holder and  Borrower may change the address for service by service
         of written notice to the other as herein provided.  Notice by telephone
         or facsimile is also permitted.

8.4      Amendment  Provision.  This  Debenture may only be amended by a written
         agreement executed by both Borrower and Holder.

8.5      Cost  of  Collection.  If  default  is  made  in the  payment  of  this
         Debenture,  Borrower  shall  pay  Holder  hereof  costs of  collection,
         including, reasonable attorneys, fees, should Holder prevail.

8.6      Replacement   of   Debenture.   On  receipt  of   evidence   reasonably
         satisfactory to Borrower of the loss, theft,  destruction or mutilation
         of this  Warrant  and, in the case of loss,  theft or  destruction,  on
         delivery of an indemnity agreement reasonably  satisfactory in form and
         substance to Borrower or, in the case of  mutilation,  on surrender and
         cancellation of this  Debenture,  Borrower at its expense shall execute
         and deliver,  in lieu of this Debenture,  a new debenture of like tenor
         and amount.

8.7      Governing  Law.  This  Debenture  has been executed by Borrower in, and
         shall be governed by the laws of the State of California.

                                       14


8.8      Successors  and  Assigns.  Subject  to  terms  and  provisions  of this
         Debenture limiting the right of assignment,  this Debenture and all the
         respective rights, interests and obligations hereunder shall be binding
         upon,  inure to the benefit of and be enforceable by the parties hereto
         and  their  respective  heirs,  devisees,  executors,   administrators,
         personal  or legal  representatives,  successors  (in  interest,  or in
         title,  or in both) and  assigns,  whether or not any such person shall
         have  become a party to this  Debenture  and have  agreed in writing to
         join and be bound by the terms and conditions hereof.

8.9      Severability.  If any term,  covenant or condition of this Debenture or
         its  application  to any  person or  circumstances  shall be held to be
         invalid or  unenforceable,  the  remainder  of this  Debenture  and the
         application of such term or provision to other persons or circumstances
         shall  not be  affected,  and each  term  hereof  shall  be  valid  and
         enforceable to the fullest extent permitted by law.

8.10     Headings. The headings used herein are for purposes of convenience only
         and  shall  not be used  in  construing  the  provisions  hereof  or in
         determining  any of the  rights or  obligations  of the  parties to the
         Debenture.

8.11     Further  Assurances.  The parties  hereby  agree to execute  such other
         documents  and perform such other acts as may be necessary or desirable
         to carry out the purposes of this Debenture.

IN WITNESS HEREOF Borrower has caused this Debenture to be signed in its name by
its duly authorized officers.

                                       15


Dated:  December 31, 1998

Ravenswood Winery, Inc.



By:
         --------------------------------
         W. Reed Foster, Chairman and
         Chief Executive Officer



Attest:
         --------------------------------
         Justin M. Faggioli, Executive
         Vice President and Secretary


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