UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Name of Issuer)

Ordinary Shares, par value $0.0125 per share
(Title of Class of Securities)

G3075 P101

December 31, 2007

Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

o Rule 13d-1(b)

o Rule 13d-1(c)

þ Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosure provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of the section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

 

 

CUSIP No.		G3075 P101

(a) Under the bye-laws of Enstar Group Limited, the voting power of Ordinary Shares held by any shareholder shall be adjusted to the extent necessary so that no shareholder has more than 9.5% of the voting power. Accordingly, the filing person may not have voting power with respect to all of the Ordinary Shares beneficially owned by such person. The filing person disclaims any responsibility for the effects resulting from any adjustment to voting power of Ordinary Shares under the bye-laws of Enstar Group Limited.

CUSIP No.		G3075 P101

(a) Under the bye-laws of Enstar Group Limited, the voting power of Ordinary Shares held by any shareholder shall be adjusted to the extent necessary so that no shareholder has more than 9.5% of the voting power. Accordingly, the filing person may not have voting power with respect to all of the Ordinary Shares beneficially owned by such person. The filing person disclaims any responsibility for the effects resulting from any adjustment to voting power of Ordinary Shares under the bye-laws of Enstar Group Limited.

CUSIP No.		G3075 P101

(a) Under the bye-laws of Enstar Group Limited, the voting power of Ordinary Shares held by any shareholder shall be adjusted to the extent necessary so that no shareholder has more than 9.5% of the voting power. Accordingly, the filing person may not have voting power with respect to all of the Ordinary Shares beneficially owned by such person. The filing person disclaims any responsibility for the effects resulting from any adjustment to voting power of Ordinary Shares under the bye-laws of Enstar Group Limited.

CUSIP No.		G3075 P101

(a) Under the bye-laws of Enstar Group Limited, the voting power of Ordinary Shares held by any shareholder shall be adjusted to the extent necessary so that no shareholder has more than 9.5% of the voting power. Accordingly, the filing person may not have voting power with respect to all of the Ordinary Shares beneficially owned by such person. The filing person disclaims any responsibility for the effects resulting from any adjustment to voting power of Ordinary Shares under the bye-laws of Enstar Group Limited.

CUSIP No.		G3075 P101

(a) Under the bye-laws of Enstar Group Limited, the voting power of Ordinary Shares held by any shareholder shall be adjusted to the extent necessary so that no shareholder has more than 9.5% of the voting power. Accordingly, the filing person may not have voting power with respect to all of the Ordinary Shares beneficially owned by such person. The filing person disclaims any responsibility for the effects resulting from any adjustment to voting power of Ordinary Shares under the bye-laws of Enstar Group Limited.

     CUSIP NO. G3075 P101

     ITEM 1(a) NAME OF ISSUER:

Enstar Group Limited (the “Company”)

     ITEM 1(b) ADDRESS OF ISSUER’S PRINCIPAL EXECUTIVE OFFICES:

18 Queen Street, Windsor Place
3rd Floor, P.O. Box HM 2267
Hamilton, HM JX Bermuda

     ITEM 2(a) NAMES OF PERSON FILING:

Trident II, L.P.
Trident Capital II, L.P.
Marsh & McLennan Capital Professionals Fund, L.P.
Marsh & McLennan Employees’ Securities Company, L.P.
Stone Point Capital LLC

     ITEM 2(b) ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE:

For:
Trident II, L.P.
Trident Capital II, L.P.
Marsh & McLennan Capital Professionals Fund, L.P.
Marsh & McLennan Employees’ Securities Company, L.P.
c/o Maples & Calder, Ugland House, Box 309
South Church Street, Georgetown
Grand Cayman, Cayman Islands

For:
Stone Point Capital LLC
20 Horseneck Lane
Greenwich, CT 06830

ITEM 2(c) CITIZENSHIP:

Trident II, L.P. – Cayman Islands
Trident Capital II, L.P. – Cayman Islands
Marsh & McLennan Capital Professionals Fund, L.P. – Cayman Islands
Marsh & McLennan Employees’ Securities Company, L.P. – Cayman Islands
Stone Point Capital LLC – United States

ITEM 2(d) TITLE OF CLASS OF SECURITIES:

Ordinary Shares

ITEM 2(e) CUSIP NUMBER:

G3075 P101

ITEM 3.		IF THIS STATEMENT IS FILED PURSUANT TO RULES 13d-1(b), OR 13d-2(b) OR (c), CHECK WHETHER THE PERSON FILING IS A:

Not applicable.

ITEM 4. OWNERSHIP

     Trident II, L.P. (“Trident II”) is the direct beneficial owner of 1,258,297 ordinary shares of the Company (“Ordinary Shares”).

     The sole general partner of Trident II is Trident Capital II, L.P. (“Trident GP”). As the general partner, Trident GP holds voting and investment power with respect to the securities of the Company that are, or may be deemed to be, beneficially owned by Trident II. The manager of Trident II is Stone Point Capital LLC (“Stone Point”), and the members of Stone Point are Charles A. Davis, Meryl D. Hartzband, James D. Carey, Nicolas D. Zerbib and David J. Wermuth. In its role as manager, Stone Point has authority delegated to it by Trident GP to exercise voting rights of Ordinary Shares on behalf of Trident II but does not have any power with respect to disposition of Ordinary Shares held by Trident II. For any portfolio investment where Trident II controls 10% or more of the voting power of such portfolio company, Stone Point does not have discretion to exercise voting rights on behalf of Trident II without first receiving direction from the Investment Committee of Trident GP or a majority of the general partners of Trident GP.

     The general partners of Trident GP are four single member limited liability companies that are owned by individuals who are members of Stone Point (Messrs. Davis, Carey and Wermuth and Ms. Hartzband).

     Each of the single member limited liability companies that is a general partner of Trident GP has disclaimed beneficial ownership of the Ordinary Shares that are, or may be deemed to be, beneficially owned by Trident II, except to the extent of their individual pecuniary interest therein. Stone Point also has disclaimed beneficial ownership of the Ordinary Shares that are, or may be deemed to be, beneficially owned by Trident II. This report shall not be construed as an admission that such persons are the beneficial owners of Ordinary Shares for any purpose.

     Marsh & McLennan Capital Professionals Fund, L.P. (“Trident PF”) and Marsh & McLennan Employees’ Securities Company, L.P. (“Trident ESC”) have agreed with Trident II that (i) Trident ESC will divest its holdings in the Company only in parallel with Trident II, (ii) Trident PF will not dispose of its holdings in the Company before Trident II disposes of its interest, and (iii) to the extent that Trident PF elects to divest its interest in the Company at the same time as Trident II, Trident PF will divest its holdings in the Company in parallel with Trident II. As a result of this agreement, Trident II may be deemed to beneficially own 73,939 Ordinary Shares directly held by Trident PF and Trident ESC, and Trident PF and Trident ESC may be deemed to be beneficially own 1,258,297 Ordinary Shares directly held by Trident II. Trident II disclaims beneficial ownership of the Ordinary Shares that are, or may be deemed to be, beneficially owned by Trident PF and Trident ESC, and Trident PF and Trident ESC each disclaims beneficial ownership of the Ordinary Shares that are, or may be deemed to be, beneficially owned by Trident II.

     The sole general partner of Trident PF is a company controlled by individuals who are members of Stone Point. The sole general partner of Trident ESC is a company that is a wholly-owned subsidiary of Marsh & McLennan Companies, Inc. Stone Point has been granted a limited power of attorney by the sole general partner of Trident ESC which, among other things, gives Stone Point authority to execute this filing on behalf of Trident ESC. A copy of this power of attorney is attached as Exhibit A hereto.

     Trident II, Trident PF and Trident ESC are parties to a registration rights agreement which grants such parties certain registration rights with respect to the Ordinary Shares held by such shareholders. The registration rights agreement is filed as Exhibit 10.1 of the Company’s Form 8-K12B filed with the Securities and Exchange Commission on January 31, 2007.

     The information in items 5 through 9 and item 11 on the cover pages to this Schedule 13G is hereby incorporated by reference.

ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS

     Not applicable.

ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON

     Not Applicable.

ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY OR CONTROL PERSON

     Not Applicable.

ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP

     See Exhibit B.

ITEM 9. NOTICE OF DISSOLUTION OF GROUP.

     Not Applicable.

ITEM 10. CERTIFICATION.

	(a)		Not applicable.
	(b)		By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

SIGNATURE

     After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Date: February 5, 2008

		TRIDENT II, L.P.
		By: Trident Capital II, L.P., its sole general partner
		By: CD Trident II, LLC, a general partner

		By:		/s/ David J. Wermuth
		Name: David J. Wermuth
		Title: Vice President

		TRIDENT CAPITAL II, L.P.
		By: CD Trident II, LLC, a general partner

		By:		/s/ David J. Wermuth
		Name: David J. Wermuth
		Title: Vice President

		STONE POINT CAPITAL LLC

		By:		/s/ David J. Wermuth
		Name: David J. Wermuth
		Title: Principal

		MARSH & MCLENNAN CAPITAL PROFESSIONALS FUND, L.P.
		By: Stone Point GP Ltd., its sole general partner

		By:		/s/ David J. Wermuth
		Name: David J. Wermuth
		Title: Secretary

		MARSH & MCLENNAN EMPLOYEES’ SECURITIES COMPANY, L.P.
		By: Marsh & McLennan GP I, Inc., its sole general partner
		By: Stone Point Capital LLC, agent/attorney-in-fact

		By:		/s/ David J. Wermuth
		Name: David J. Wermuth
		Title: Principal

Exhibit A

LIMITED POWER OF ATTORNEY

For purposes of the investment in Enstar Group Limited (“Enstar”) held by Trident II, L.P. (“Trident II”) and Marsh & McLennan Employees’ Securities Company, L.P. (“Trident II ESC”), the undersigned, Marsh & McLennan GP I, Inc. (“MMC GP”), does hereby irrevocably constitute and appoint Stone Point Capital LLC (“Stone Point”), with full power of substitution, the true and lawful attorney-in-fact and agent of the undersigned to act on behalf of Trident II ESC, to execute, acknowledge, verify, swear to, deliver, record and file any and all of the following:

	(a)		all filings, if any, with the U.S. Securities and Exchange Commission to be made by Trident II ESC with respect to its ownership in Castlewood including without limitation SEC Forms 3, 4 and 5 as well as SEC Schedule 13D or 13G;
	(b)		all documents and agreements to be executed by Trident II ESC relating to the holding and disposition of shares of common stock of Castlewood owned by Trident II ESC, provided that the disposition of shares by Trident II ESC shall be permitted only if it is in parallel with Trident II, as required under the terms of that certain amended and restated co-investment agreement, dated as of May 31, 2005, among Trident II, Trident II ESC and the other parties thereto; and
	(c)		any other documents, instruments or agreements determined by Stone Point to be necessary in connection with the foregoing.

Any person dealing with Trident II ESC may conclusively presume and rely upon the fact that any instrument referred to above, executed by such attorney-in-fact and agent, is authorized, regular and binding, without further inquiry.

THIS POWER OF ATTORNEY AND THE RIGHTS OF THE PARTIES HEREUNDER SHALL BE GOVERNED BY AND CONSTRUED AND ENFORCED IN ACCORDANCE WITH THE LAWS OF THE STATE OF DELAWARE, WITHOUT REGARD TO PRINCIPLES OF CONFLICT OF LAWS. THIS POWER OF ATTORNEY EXPIRES MARCH 31, 2010.

MARSH & McLENNAN EMPLOYEES’ SECURITIES COMPANY, L.P.

By: MARSH & MCLENNAN GP I, INC.

		By:		/s/ Luciana Fato
		Name:		Luciana Fato
		Title:		Secretary

January 23, 2008

Exhibit B

JOINT FILING AGREEMENT

The undersigned agree that the statement on Schedule 13G to which this exhibit is attached is filed on behalf of each of them in capacities set forth below.

Dated: February 5, 2008

		TRIDENT II, L.P.
		By: Trident Capital II, L.P., its sole general partner
		By: CD Trident II, LLC, a general partner

		By:		/s/ David J. Wermuth
		Name: David J. Wermuth
		Title: Vice President

		TRIDENT CAPITAL II, L.P.
		By: CD Trident II, LLC, a general partner

		By:		/s/ David J. Wermuth
		Name: David J. Wermuth
		Title: Vice President

		STONE POINT CAPITAL LLC

		By:		/s/ David J. Wermuth
		Name: David J. Wermuth
		Title: Principal

		MARSH & MCLENNAN CAPITAL PROFESSIONALS FUND, L.P.
		By: Stone Point GP Ltd., its sole general partner

		By:		/s/ David J. Wermuth
		Name: David J. Wermuth
		Title: Secretary

		MARSH & MCLENNAN EMPLOYEES’ SECURITIES COMPANY, L.P.
		By: Marsh & McLennan GP I, Inc., its sole general partner
		By: Stone Point Capital LLC, agent/attorney-in-fact

		By:		/s/ David J. Wermuth
		Name: David J. Wermuth
		Title: Principal