EXHIBIT 10.19
    Severance Agreement and Mutual General Release between NBT Bancorp Inc.
                             and John G. Martines.




                 SEVERANCE AGREEMENT AND MUTUAL GENERAL RELEASE


         This is a Severance Agreement and Mutual General Release ("Agreement")
between NBT  Bancorp,  Inc.  ("NBTB")  and John G.  Martines  ("Executive").  In
consideration of the mutual promises and commitments made herein,  and intending
to be legally bound hereby, NBTB and Executive agree as follows:

         1. Effective at 11:59p.m. on January 26, 2001, Executive has elected to
retire  and  resign  voluntarily  from all  positions  he holds as an officer of
NBTB's  Pennsylvania  banking  operations,  which is (or will be) doing business
under the name of Pennstar Bank,  N.A., and in accordance with the provisions of
his  employment   agreement,   dated  February  17,  2000.   Executive   further
acknowledges  that, as a result of his retirement,  his employment  relationship
with NBTB and Pennstar Bank will be permanently and irrevocably severed and that
NBTB and Pennstar Bank will have no  obligation,  contractual  or otherwise,  to
rehire or reinstate him after January 26, 2001.

         2. NBTB and Executive agree that the Executive may continue,  after his
retirement,  to serve as a  director  on the  Boards  of  Directors  of NBTB and
Pennstar  Bank,  N.A.  Furthermore,  after the  effective  date of the merger of
Pennstar Bank,  N.A. with and into Nystar Bank,  N.A.,  NBTB and Executive agree
that the Executive may continue as the Chairman and a director of Pennstar Bank,
which will be the Pennsylvania division of Nystar Bank, N.A. Executive shall not
be entitled to receive directors' fees for such service.

         3.  NBTB  agrees  to pay  Executive  by wire  transfer  in  immediately
available  funds to an account  designated  by  Executive on January 26, 2001 or
seven (7) days after  execution  of this  Agreement by  Executive,  whichever is
later, the following:

         A.       one million two hundred thousand dollars ($1,200,000); and
         B.       an amount equal to Executive's normal bonus payout under his
                  existing employment agreement for the calendar year
                  2000, if not received prior to January 26, 2001.

         Furthermore,  NBTB will transfer title to the automobile currently used
by  Executive  on January  26,  2001 or seven (7) days after  execution  of this
Agreement by Executive, whichever is later.

         Executive  will also be entitled  to receive no later than  January 26,
2001,  a grant of stock  options  pursuant to the NBT Bancorp,  Inc.  1993 Stock
Option Plan in accordance with his existing employment agreement.

         4. Executive acknowledges and agrees that, except for the payment under
paragraphs 3A and 3B, he is responsible  for the payments of all federal,  state
and local estimated quarterly income tax payments for the blue-book value of the
automobile as determined by NBTB.

         5. Nothing in this Agreement shall affect Executive's vested portion of
his  account  in NBTB's  employee  benefit  and  retirement  programs.  NBTB and
Executive agree that the terms and provisions of Executive's  current employment
agreement shall remain in full force and effect up to and including  January 26,
2001,  except that Executive  agrees to renounce any right to the payment of any
salary to him for the period from January 1 to January 26, 2001 and any vacation
accrual that may be earned for the  calendar  year 2001 and in exchange for such
renouncement,  NBTB shall award the  Executive on December  31,  2000,  eighteen
additional vacation days to be used by the Executive in January 2001. NBTB shall
pay the Executive for these  vacation days at his current rate of  compensation.
Executive specifically  acknowledges that his current employment agreement shall
be null and void as of January 27, 2001.

         6. In consideration for NBTB's commitments hereunder,  Executive hereby
remises,  releases and forever  discharges NBTB and each and all of its past and
present subsidiaries, parent and related corporations,  companies and divisions,
and its past and present directors,  trustees, officers, managers,  supervisors,
employees, attorneys, and agents, and their predecessors, successors and assigns
(referred to  collectively in this Agreement as  "Releasees"),  from any and all
claims,  debts,  agreements,   complaints  or  causes  of  action  (hereinafter,
collectively, "claims"), whether known or unknown, that he ever had, now has, or
hereafter can, shall or may have against any or all of the Releasees, for, upon,
or by reason of any cause,  matter,  thing or event whatsoever  occurring at any
time from the date of  Executive's  birth up to and including  January 26, 2001.
Executive  acknowledges  and understands  that the claims being released in this
paragraph include, but are not limited to: (i) any claim based on contract or in
tort or common law; (ii) any claim based on or arising under any civil rights or
employment  discrimination  laws,  such as the  Federal  Age  Discrimination  in
Employment Act (29 U.S.C. ss. 621 ET SEQ.) (hereinafter,  "ADEA"),  Title VII of
the Civil Rights Act of 1964 (42 U.S.C.  ss. 2000e ET seq.), or the Pennsylvania
Human  Relations  Act (42 P.S.  ss.  951 ET SEQ.);  (iii) any claim  based on or
arising under any employment related law, such as the Employee Retirement Income
Security Act of 1974, as amended (29 U.S.C.  ss. 301 ET SEQ.), the Equal Pay Act
(29 U.S.C. ss. 201 ET SEQ.), the Americans With  Disabilities Act (42 U.S.C. ss.
12101 ET SEQ.),  the Family and Medical Leave Act (29 U.S.C.  ss. 2601 ET SEQ.),
or the Fair Labor  Standards Act, as amended (29 U.S.C.  ss. 201 ET SEQ.);  (iv)
any claim based on or arising out of Executive's employment by NBTB and Pennstar
Bank and their  predecessors  and/or his  resignation  therefrom  including  any
claims  pursuant to his employment  agreement  dated February 17, 2000; and (iv)
any claims  for  compensatory,  liquidated  or  punitive  damages,  damages  for
emotional distress,  back pay, front pay, and benefits.  In addition,  effective
upon  the  eighth  day  following  execution  of this  Agreement  by  Executive,
Executive shall have hereby waived any and all claims, whether known or unknown,
that he ever  had,  now has,  or  hereafter  can,  shall or may have  under  the
Change-in-Control  Agreement,  as  that  term  is  defined  in  the  Executive's
employment  agreement dated February 17, 2000.  Executive  understands  that, by
signing this  Agreement,  he waives all claims he ever had, now has, or may have
against  any of the  Releasees.  NBTB does  hereby  remise,  release and forever
discharge  Executive  from any and all claims,  debts,  agreements,  complaints,
liabilities,  payments,  accountings,  actions and causes of action, whatsoever,



whether  known  or  unknown,  at the  date  and  time  Executive  executes  this
Agreement,  that NBTB does, shall or might have against Executive,  for, upon or
by reason of any cause,  matter, thing or event whatsoever occurring at any time
from  the  date of  Executive's  birth  to and  including  the  date and time he
executes  this  Agreement.  NBTB  understands  that,  by the  execution  of this
Agreement  by an  authorized  officer,  NBTB waives all claims it ever had,  now
have,  or may have  against  Executive,  including,  but not limited to,  claims
arising  out of his  employment  prior to the date  and  time he  executes  this
Agreement.  This  release  does not apply to the  requirements  and  obligations
contained within this Agreement.  Furthermore,  Executive  specifically reserves
his  right  to  proceed  against  NBTB  under  Subsection  3(d)  of  Executive's
employment agreement dated February 17, 2000.

         7. If all or any portion of the amounts payable to Executive under this
Agreement,  either alone or together with other payments which Executive has the
right to receive from NBTB,  constitute  "excess parachute  payments" within the
meaning of Section 280G of the  Internal  Revenue Code of 1986 (the "Code") that
are  subject  to the excise  tax  imposed  by  Section  4999 of the Code (or any
successor  sections),  NBTB shall increase the amounts payable  hereunder to the
extent  necessary to place Executive in the same after-tax  position as he would
have been in had no such excise tax been imposed on the payments hereunder.  The
determination  of the  amount  of any  such  excise  taxes  shall be made by the
independent accounting firm retained by NBTB.

         If at a later date it is determined  (pursuant to final  regulations or
published rulings of the Internal Revenue Service ("IRS"), assessment by the IRS
or  otherwise)  that the amount of excise taxes  payable by Executive is greater
than the amount initially so determined, then NBTB shall pay Executive an amount
equal to the sum of (A) such  additional  excise  taxes,  plus (B) any interest,
fines and penalties with respect to such additional  excise taxes,  plus (C) the
amount  necessary to reimburse  Executive for any income,  excise or other taxes
payable by Executive with respect to the amounts  specified in (A) and (B) above
and the reimbursement provided by this clause (C).

         8.  Executive  further  covenants  and  agrees  not to  sue  any of the
Releasees  for any claims  released  hereunder,  nor to assert  any such  claims
against  any of the  Releasees  for any  purpose.  Any claim for a breach of any
provision  of this  Agreement  may be remedied  only by a lawsuit to enforce the
Agreement and will not invalidate any party's release of claims.

         9. Executive agrees that the terms of this Agreement are  confidential,
and that he will not  disclose or publicize  the terms of this  Agreement or the
amounts  paid or agreed to be paid  pursuant to this  Agreement to any person or
entity, except to his attorney or accountant,  or to a government agency for the
purposes of the payment or collection of taxes or application  for  unemployment
compensation.  NBTB agrees that the terms of this Agreement are confidential and
they will not  knowingly  disclose  or  publicize  (or  knowingly  permit  their
employees to disclose or  publicize)  the terms of this  Agreement or the amount
paid pursuant to this  Agreement to any person or entity except their  officers,
directors, attorneys or accountants, or to a government agency or representative
thereof;  provided,  however,  that  NBTB  does not  guarantee  that none of its
employees  will not  make  any such  disclosure  or  publication;  and  provided



further, that NBTB reserves the right to disclose the terms of this Agreement in
any  filing  required  under  the rules and  regulations  promulgated  under the
Securities  Exchange  Act of  1934 by the  Securities  and  Exchange  Commission
("SEC") if, in the opinion of NBTB's counsel,  such disclosure is required under
such rules and regulations of the SEC.

         10. All executed  copies of this Agreement,  and  photocopies  thereof,
shall  have the same  force and  effect  and  shall be as  legally  binding  and
enforceable as the original.

         11. All provisions of this Agreement are severable,  and if any of them
is  determined  to be invalid or  unenforceable  for any reason,  the  remaining
provisions and portions of this Agreement shall be unaffected  thereby and shall
remain in full force to the fullest extent permitted by law.

         12.  This  Agreement  is binding on  Executive  and on his  successors,
administrators, heirs and assigns, and inures to the benefit of each of NBTB and
the   Releasees   and  their   successors,   predecessors,   heirs,   executors,
administrators or assigns, as the case may be.

         13.  Executive  acknowledges  that he has been advised of his rights to
consult  with an attorney  before  signing this  Agreement  and that he has been
encouraged  to do so.  Consequently,  he has  been  represented  by  independent
counsel in this matter.

         14. Executive makes the following  additional  representations to NBTB,
each  of  which  is  significant  and  an  important  consideration  for  NBTB's
willingness to enter into the Agreement:

                  A.       Executive expressly acknowledges that if he did not
execute the Agreement, he would not be entitled to receive the money set forth
in paragraph 3 A.

                  B.  Executive  acknowledges  that he has been given a full and
fair  opportunity to review the Agreement.  NBTB  specifically  recommended that
Executive  consult with an attorney before  executing the Agreement,  and he has
been  allowed  up to  twenty-one  (21) days to  consider  whether  to accept the
Agreement.  Executive acknowledges that he is signing this Agreement voluntarily
and of his own free will, with full knowledge of the nature and  consequences of
its terms.

                  C. Executive  understands that he may change his mind, and not
retire and revoke the  Agreement  at any time during the seven (7) days after he
signs the Agreement,  provided he does so in writing,  in which case none of the
provisions of the Agreement will have any effect.  Executive understands that he
will not be entitled to receive any payments under the Agreement until the seven
(7) day revocation period has expired without revocation of the Agreement.

         15. By entering into this Agreement, NBTB does not admit that it or any
of its employees  violated any law or any legal right of Executive and, in fact,
NBTB expressly denies liability. NBTB is entering into this Agreement solely for



the  purpose of  effectuating  a mutually  satisfactory  retirement  benefit for
Executive and,  therefore,  termination of his positions,  as an officer of NBTB
and the Pennstar Bank.

         16. By entering into this Agreement, neither Executive, nor NBTB admits
that he or they, or any of their  employees,  violated any law or legal right of
the other,  and,  in fact,  Executive,  and NBTB  expressly  deny  liability  or
responsibility.  They are entering into this Agreement solely for the purpose of
effectuating a mutual satisfactory severance of Executive's employment with, and
termination of his positions as an officer of NBTB.

         17. NBTB and Executive agree that this Agreement will have no force and
effect,  unless and until NBTB and Executive enter into the Consulting Agreement
as set forth at Exhibit A to this Agreement.

         18. The Agreement and all acts and transactions  contemplated hereunder
shall be governed,  construed and interpreted in accordance with the laws of the
Commonwealth of Pennsylvania, without regard to principles of conflict of laws.

         19. Each party shall be responsible for its own attorneys' fees.

         20. This is the  complete and final  agreement  between the parties and
supersedes  all  prior  or   contemporaneous   agreements,   employment  offers,
negotiations or retirement discussions with respect to such subject matters with
the specific exception the Consulting Agreement set forth at Exhibit A hereto.

                                           NBT BANCORP, INC.


By:   /S/ John G. Martines            By:  /S/ Daryl R. Forsythe
      John G. Martines                     Daryl R. Forsythe,
                                           President and Chief Executive Officer
      Date:  October 17, 2000              Date:  October 17, 2000