Exhibit 10.12

                   PERFORMANCE RESTRICTED STOCK UNIT AGREEMENT


               AGREEMENT, made and entered into as of _________ ___, 200__ by
and between XL Capital Ltd, a Cayman Islands corporation ("XL"), and <<Grantee>>
(the "Grantee").

               WHEREAS, the Grantee is an employee of XL and/or any of its
subsidiaries (collectively called the "Company"); and

               WHEREAS, XL regards the Grantee as a valuable employee of the
Company and has determined it to be in the interest of the Company to grant to
the Grantee an award of Performance Restricted Stock Units under the Company's
1991 Performance Incentive Program;

               NOW, THEREFORE, in consideration of the premises and mutual
covenants contained herein, and for other good and valuable consideration, XL
and the Grantee agree as follows:

               (a) GRANT OF PERFORMANCE RESTRICTED STOCK UNITS.

               XL hereby grants to the Grantee an award (the "Award") of
<<No. of Shares>> Performance Restricted Stock Units subject to the restrictions
set forth below (the "Performance Restricted Stock Units"). The date of grant of
the Award shall be the date set forth above (the "Date of Grant"). The Award is
granted pursuant to the terms of the Company's 1991 Performance Incentive
Program, which is incorporated by reference herein. Any capitalized terms used
herein and not defined shall have the meanings given to those terms in the 1991
Performance Incentive Program.

               (b)   VESTING.

               The Award will vest as follows:

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               (i) 25% of the Performance Restricted Share Units subject to the
Award will vest on each of the first, second, third and fourth anniversaries of
the Date of Grant (or, if later, the date the Board determines that the
applicable ROE (as defined below) threshold has been met), in each case if, and
only if, the consolidated return on equity of the Company, as determined by the
Board, (the "ROE") for the immediately preceding calendar year equals or exceeds
[__]%.

               (ii) If in any year the portion of the Performance Restricted
Share Units subject to vesting for the first time under (i) above does not vest
because the ROE for the immediately preceding calendar year was below the [__]%
threshold set forth in (i) above, such portion of the Performance Restricted
Share Units will vest on the next anniversary of the Date of Grant (or, if
later, the date the Board determines that the applicable ROE threshold has been
met), in each case if, and only if, the ROE for the two calendar year period
immediately preceding such next anniversary (for this purpose treating the ROE
for any calendar year as not less than zero) equals or exceeds [__]% per annum,
compounded annually.

               (iii) If any portion of the Performance Restricted Share Units
subject to the Award fails to vest in two or more successive years due to the
failure to achieve the required ROE thresholds, such portion of the Performance
Restricted Share Units will vest on the next anniversary of the Date of Grant
(or, if later, the date the Board determines that the applicable ROE threshold
has been met), in each case if, and only if, the ROE for the three calendar year
period immediately preceding such next anniversary (for this purpose treating
the ROE for any calendar year as not less than zero) equals or exceeds [__]% per
annum, compounded annually.

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               (iv) Notwithstanding the foregoing, the Award shall vest in full
on the tenth anniversary of the Date of Grant or upon an Early Termination (as
defined in paragraph (e) below).

               (v) ROE determinations for a period shall be made by the Board no
later than the 20th day of February next following the end of the period.

               (vi) The portion of the Award, if any, that is not vested
immediately following termination of the Grantee's employment shall be
immediately forfeited.

               (c)   DISTRIBUTION OF STOCK.

               At the time the Award vests in accordance with paragraph (b)
above, the Company shall distribute to the Grantee a number of Ordinary Shares,
US$0.01 par value per share, of XL (the "Shares") equal to the number of
Performance Restricted Stock Units which vested. Prior to the Company's delivery
of the Shares, the Grantee shall pay to XL an amount of cash equal to the par
value for each of such Shares delivered.

               (d) RIGHTS AND RESTRICTIONS.

               The Performance Restricted Stock Units shall not be transferable
other than pursuant to will or the laws of descent and distribution. Prior to
vesting of the Performance Restricted Stock Units and delivery of the Shares to
the Grantee, the Grantee shall not have any rights and privileges of a
shareholder as to the Shares subject to the Award. Specifically, the Grantee
shall not have the right to receive dividends or the right to vote such Shares
prior to vesting of the Award and delivery of the Shares.

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               (e)   EARLY TERMINATION.

                  The Award shall vest in full immediately upon the happening of
any of the following events (each an "Early Termination"):

               (i) DEATH OF GRANTEE. In the event the Grantee dies while in the
          employment of the Company.

               (ii) TERMINATION OF EMPLOYMENT DUE TO DISABILITY. In the event
          the Grantee's employment with the Company is terminated by the Company
          by reason of the Grantee's Disability. "Disability" means the
          inability of the Grantee, as a result of accident or sickness, to
          perform the duties pertaining to his occupation or employment with the
          Company as determined by the Company.


               (iii) TERMINATION OF EMPLOYMENT DUE TO RETIREMENT. In the event
          the Grantee's employment with the Company is terminated due to his or
          her Retirement.

               (iv) CHANGE OF CONTROL. In the event there is a Change of Control
          of the Company.

               (f)   STATUS OF SHARES.

               Upon issuance, the Shares shall rank equally in all respects with
the other outstanding Shares of XL and shall be fully paid.

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               (g)   ADJUSTMENTS FOR RECAPITALIZATIONS, ETC.

               In the event of stock dividends, stock splits, recapitalizations,
mergers, consolidations, combinations, exchanges of shares, spin-off,
liquidations, reclassifications or other similar changes in the capitalization
of XL, the number of Shares subject to this Award shall be proportionately
adjusted by the Board on an equitable basis.

               (h)   OBLIGATIONS AS TO CAPITAL.

               XL agrees that it will at all times maintain authorized and
unissued share capital sufficient to fulfill all of its obligations under this
Agreement.

               (i)   WITHHOLDING.

               The Grantee agrees to make appropriate arrangements with XL for
satisfaction of any applicable income tax withholding requirements or social
security or similar requirements arising out of the Award. Such withholding tax
obligations may be satisfied by withholding Shares from this Award; provided
that the amount of tax withholding to be satisfied by withholding Shares shall
be limited to the minimum amount of taxes, including employment taxes, required
to be withheld under applicable law.

               (j)   REFERENCES.

               References herein to rights and obligations of the Grantee shall
apply, where appropriate, to the estate or personal representative of the
Grantee without regard to whether specific reference to them is contained in a
particular provision of this Agreement.

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               (k)   NOTICE.

               Any notice or communication to be given to XL under this
Agreement shall be in writing and shall be deemed to have been given when
delivered personally or sent by certified or registered mail, postage prepaid,
duly addressed to XL Capital Ltd, XL House, One Bermudiana Road, Hamilton HM 08,
Bermuda.

               (l)   GOVERNING LAW.

               This Agreement shall be governed by and construed in accordance
with the laws of the State of New York without reference to the principles of
conflict of laws.

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               IN WITNESS WHEREOF, the parties hereto have duly caused this
Agreement to be executed and delivered on the date first above written.


                                           XL Capital Ltd


                                           By: ______________________________




                                           ________________________________
                                           <<Grantee>>