EXHIBIT 4.20
                                  ------------

     SUPPLEMENTAL  INDENTURE  NO. 3 (the  "Supplement"),  dated as of  August 6,
1999, is entered into by and among CANANDAIGUA  BRANDS,  INC. (formerly known as
Canandaigua Wine Company,  Inc.), a Delaware  corporation  (the "Company"),  and
Canandaigua  B.V., a private company with limited liability  incorporated  under
the laws of the Netherlands,  Barton Canada, Ltd., an Illinois corporation, Simi
Winery, Inc., a California corporation,  Franciscan Vineyards,  Inc., a Delaware
corporation,  Allberry,  Inc., a California  corporation,  M.J.  Lewis Corp.,  a
California corporation,  Cloud Peak Corporation,  a California corporation,  Mt.
Veeder Corporation,  a California corporation and SCV-EPI Vineyards, Inc., a New
York corporation,  each being, directly or indirectly, a wholly-owned subsidiary
of the  Company  (individually  a "New  Guarantor"  and  collectively  the  "New
Guarantors"), and HARRIS TRUST AND SAVINGS BANK , as Trustee (the "Trustee").


                 RECITALS OF THE COMPANY AND THE NEW GUARANTORS

     WHEREAS,  the Company,  the  Guarantors  and the Trustee have  executed and
delivered an Indenture,  dated as of February 25, 1999 (the "Base Indenture"), a
Supplemental  Indenture No. 1, dated as of February 25, 1999 with respect to the
issuance  by the  Company  of  $200,000,000  aggregate  principal  amount of the
Company's 8 1/2%  Senior  Subordinated  Notes due 2009 (the "First  Supplemental
Indenture"),  and a Supplemental Indenture No. 2 dated as of August 4, 1999 with
respect to the issuance by the Company of up to $400,000,000 aggregate principal
amount of the  Company's 8 5/8% Senior Notes due 2006 (the "Second  Supplemental
Indenture" and collectively  with the Base Indenture and the First  Supplemental
Indenture,  the  "Indentures")  pursuant to which the Guarantors  have agreed to
guarantee,  jointly and severally, the full and punctual payment and performance
when due of all Indenture Obligations; and

     WHEREAS,  the New Guarantors have become  Subsidiaries  and pursuant to the
Indentures are obligated to enter into this Supplement thereby  guaranteeing the
punctual payment and performance when due of all Indenture Obligations; and

     WHEREAS,  pursuant to the Indentures,  the Company,  the New Guarantors and
the  Trustee may enter into this  Supplement  without the consent of any Holder;
and

     WHEREAS,  all conditions and requirements  necessary to make the Supplement
valid and  binding  upon the  Company and the New  Guarantors,  and  enforceable
against the Company and the New  Guarantors in accordance  with its terms,  have
been performed and fulfilled;

     NOW, THEREFORE, in consideration of the above premises, each of the parties
hereto agrees, for the benefit of the others and for the equal and proportionate
benefit of the Holders of the Securities, as follows:


                                   ARTICLE ONE
                                THE NEW GUARANTEE

     Section 101. For value  received,  the New  Guarantors  hereby  absolutely,
unconditionally  and irrevocably  guarantee (the "New  Guarantee"),  jointly and
severally among themselves and



the Guarantors, to the Trustee and the Holders, as if each New Guarantor was the
principal debtor, the punctual payment and performance when due of all Indenture
Obligations  (which for  purposes of the New  Guarantee  shall also be deemed to
include all  commissions,  fees,  charges,  costs and other expenses  (including
reasonable  legal  fees and  disbursements  of one  counsel)  arising  out of or
incurred by the Trustee or the Holders in  connection  with the  enforcement  of
this New Guarantee).  The agreements made and obligations  assumed  hereunder by
the New  Guarantors  shall  constitute  and  shall be  deemed  to  constitute  a
Guarantee under the Indentures and for all purposes of the Indentures as if each
of the New Guarantors was originally named therein as the Guarantor.

     Section 102. The New Guarantee shall be released upon the occurrence of the
events as provided in the Indentures.

     Section 103. The New  Guarantors  hereby waive,  and will not in any manner
whatsoever   claim  or  take  the  benefit  or  advantage   of,  any  rights  of
reimbursement,  indemnity or subrogation or any other rights against the Company
or any other  Subsidiary as a result of any payment by such Subsidiary under its
Guarantee under the Indentures.


                                   ARTICLE TWO
                                  MISCELLANEOUS

     Section 201. Except as otherwise  expressly  provided or unless the context
otherwise  requires,  all terms used herein which are defined in the  Indentures
shall  have  the  meanings  assigned  to  them  in  the  Indentures.  Except  as
supplemented  hereby,  the Indentures  (including  the  Guarantees  incorporated
therein) and the notes issued pursuant thereto are in all respects  ratified and
confirmed  and all the terms and  provisions  thereof shall remain in full force
and effect.

     Section 202. The recitals contained herein shall be taken as the statements
of the Company and the New Guarantors, and the Trustee assumes no responsibility
for their  correctness.  The Trustee makes no representations as to the validity
or sufficiency of this Supplement.

     Section  203.  This  Supplement  shall  be  governed  by and  construed  in
accordance  with the laws of the  jurisdiction  which governs the Indentures and
their construction.

     Section 2.04. This Supplement may be executed in any number of counterparts
each of  which  shall  be an  original,  but such  counterparts  shall  together
constitute but one and the same instrument.



     IN WITNESS  WHEREOF,  the parties hereto have caused this  Supplement to be
duly  executed  and  their  respective  seals to be  affixed  hereunto  and duly
attested all as of the day and year first above written.

                                        CANANDAIGUA BRANDS, INC.


[Corporate Seal]                        By: /s/Thomas S. Summer
                                            -----------------------------------
                                            Name:  Thomas S. Summer
                                            Title: Senior Vice President and
                                                   Chief Financial Officer


Attest: /s/David S. Sorce
        -----------------
Title:  Secretary


                                        CANANDAIGUA B.V.


                                        By: /s/Thomas S. Summer
                                            -----------------------------------
                                            Name:  Thomas S. Summer
                                            Title: Authorized Representative


                                        BARTON CANADA, LTD.


                                        By: /s/Thomas S. Summer
                                            -----------------------------------
                                            Name:  Thomas S. Summer
                                            Title:  Vice President


                                        SIMI WINERY, INC.


                                        By: /s/Thomas S. Summer
                                            -----------------------------------
                                            Name:  Thomas S. Summer
                                            Title:  President and Treasurer


                                        FRANCISCAN VINEYARDS, INC.


                                        By: /s/Thomas S. Summer
                                            -----------------------------------
                                            Name:  Thomas S. Summer
                                            Title:  Vice President and Treasurer




                                        ALLBERRY, INC.


                                        By: /s/Thomas S. Summer
                                            -----------------------------------
                                            Name:  Thomas S. Summer
                                            Title:  Vice President and Treasurer


                                        M.J. LEWIS CORP.


                                        By: /s/Thomas S. Summer
                                            -----------------------------------
                                            Name:  Thomas S. Summer
                                            Title:  Vice President and Treasurer


                                        CLOUD PEAK CORPORATION


                                        By: /s/Thomas S. Summer
                                            -----------------------------------
                                           Name:  Thomas S. Summer
                                           Title:  Vice President and Treasurer


                                        MT. VEEDER CORPORATION


                                        By: /s/Thomas S. Summer
                                            -----------------------------------
                                            Name:  Thomas S. Summer
                                            Title:  Vice President and Treasurer


                                        SCV-EPI VINEYARDS, INC.


                                        By: /s/Thomas S. Summer
                                            -----------------------------------
                                            Name:  Thomas S. Summer
                                            Title:  Vice President and Treasurer


                                        HARRIS TRUST AND SAVINGS BANK


[Corporate Seal]                        By: /s/J. Bartolini
                                            -----------------------------------
                                            Name:  J. Bartolini
                                            Title: Vice President

Attest: /s/Ray Nowakowski
        -----------------
Title:  Asst. Secretary