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U.S. SECURITIES AND EXCHANGE COMMISSION
 Washington, D.C. 20549
FORM 5
ANNUAL STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP
Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934,
Section 17(a) of the Public Utility Holding Company Act of 1935 or
Section 30(f) of the Investment Company Act of 1940
[X] Check box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
[ ] Form 3 Holdings Reported
[ ] Form 4 Transactions Reported

1. Name and Address of Reporting Person*

DUPERREAULT Brian

(Last) (First) (Middle) c/o ACE Limited The ACE Building, 30 Woodbourne Ave.

(Street)

Hamilton HM 08 BERMUDA

(City) (State) (Zip)
 2. Issuer Name and Ticker or Trading Symbol

ACE Limited (NYSE:ACL)

3. IRS or Social Security Number of Reporting Person (Voluntary)

4. Statement for Month/Year

December 1999

5. If Amendment, Date of Original (Month/Year)

6. Relationship of Reporting Person to Issuer
(Check all applicable)
[X] Director [ ] 10% Owner
[X] Officer (give title below) [ ] Other (specify below)
Chairman and Chief Executive Officer

7. Individual or Joint/Group Filing
(Check applicable line)

[X] Form filed by one Reporting Person
[ ] Form filed by more than one Reporting Person

Table I -- Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

                                                                                                 5.             6.
                                                                 4.                              Amount of      Owner-
                                                                 Securities Acquired (A) or      Securities     ship
                                                                 Disposed of (D)                 Beneficially   Form:     7.
                                                                 (Instr. 3, 4 and 5)             Owned at End   Direct    Nature of
                                      2.            3.           -----------------------------   of Issuer's    (D) or    Indirect
1.                                    Transaction   Transaction                  (A)             Fiscal Year    Indirect  Beneficial
Title of Security                     Date          Code             Amount      or     Price    (Instr. 3      (I)       Ownership
(Instr. 3)                            (mm/dd/yy)    (Instr. 8)                   (D)             and 4)         (Instr. 4)(Instr. 4)
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Ordinary Shares                      10/7/99         A(1)             1,041       A    $14.3969                  D
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Ordinary Shares                      11/18/99        A(2)             60,000      A      (2)      555,087        D
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* If the Form is filed by more than one Reporting Person, see Instruction 4(b)(v).
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
(Over)

(Form 5-07/98)

FORM 5 (continued)
Table II -- Derivative Securities Acquired, Disposed of, or Beneficially Owned

(e.g., puts, calls, warrants, options, convertible securities)

                                                                                                          9.        10.
                                                                                                          Number    Owner-
                                                                                                          of        ship
                    2.                                                                                    Deriv-    of
                    Conver-                    5.                              7.                         ative     Deriv-   11.
                    sion                       Number of                       Title and Amount           Secur-    ative    Nature
                    or                         Derivative    6.                of Underlying     8.       ities     Secur-   of
                    Exer-                      Securities    Date              Securities        Price    Bene-     ity:     In-
                    cise     3.                Acquired (A)  Exercisable and   (Instr. 3 and 4)  of       ficially  Direct   direct
                    Price    Trans-   4.       or Disposed   Expiration Date   ----------------  Deriv-   Owned     (D) or   Bene-
1.                  of       action   Trans-   of (D)        (Month/Day/Year)            Amount  ative    at End    In-      ficial
Title of            Deriv-   Date     action   (Instr. 3,    ----------------            or      Secur-   of        direct   Owner-
Derivative          ative    (Month/  Code     4 and 5)      Date     Expira-            Number  ity      Year      (I)      ship
Security            Secur-   Day/     (Instr.  ------------  Exer-    tion               of      (Instr.  (Instr.   (Instr.  (Instr.
(Instr. 3)          ity      Year)    8)        (A)   (D)    cisable  Date     Title     Shares  5)       4)        4)       4)
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Options to acquire  $19.3125  11/18/99  A      170,000       (3)    11/18/2009  Ordinary  170,000 (4)    1,535,000   D
                                                                                 Shares
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Explanation of Responses:

(1) Purchase pursuant to ACE Limited Employee Stock Purchase Plan.
(2) Award of restricted stock pursuant to ACE Limited Long-Term Incentive Plan. Stock vests as follows: 1/4 on first anniversary
    of date of award, 1/4 on second anniversary of date of award, 1/4 on third anniversary of date of award, and 1/4 on fourth
    anniversary of date of award.
(3) Options become exercisable as follows: 1/3 on first anniversary of date of award, 1/3 on second anniversary of date of award,
    and 1/3 on third anniversary of date of award.
(4) Option award pursuant to ACE Limited 1995 Long-Term Incentive Plan.	

Signed for Brian Duperreault pursuant
to a power of attorney on file with
the Securities and Exchange Commission

        /s/ Peter Mear                                       11th Feb. 2000
By:------------------------------------------           -----------------------
      **Signature of Reporting Person                             Date	

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed.
If space provided is insufficient, see Instruction 6 for procedure.
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