Exhibit 10.47

AMENDMENT NO. 1

AMENDMENT NO. 1 (this “Amendment”) dated as of August 12, 2010 among LAZARD GROUP LLC (the “Company”), the Banks executing this Amendment, each of which is a party to the Credit Agreement referred to below, and Citibank, N.A., as Administrative Agent (the “Administrative Agent”).

The Company, the Banks party thereto (including the Banks executing this Amendment) and the Administrative Agent are parties to a Credit Agreement dated as of April 29, 2010 (the “Credit Agreement”), providing, subject to the terms and conditions thereof, for extensions of credit to be made by said Banks to the Company thereunder.

The parties hereto wish now to amend the Credit Agreement in certain respects and, accordingly, the parties hereto hereby agree as follows:

Section 1. Definitions. Except as otherwise defined in this Amendment, terms defined in the Credit Agreement are used herein as defined therein.

Section 2. Amendments. Subject to the satisfaction of the conditions precedent specified in Section 4 below, the Credit Agreement shall be amended as follows:

2.01. References Generally. References in the Credit Agreement (including references to the Credit Agreement as amended hereby) to “this Agreement” (and indirect references such as “hereunder”, “hereby”, “herein” and “hereof”) shall be deemed to be references to the Credit Agreement as amended hereby.

2.02. Amendments to Section 1.1 (Defined Terms). Section 1.1 of the Credit Agreement is hereby amended by (i) deleting the definition for “FOCUS Report” in its entirety and (ii) restating the following definition to read as follows:

“Designated Subsidiary”: each of Lazard Frères & Co. LLC, Lazard Asset Management LLC, Lazard & Co., Limited and Compagnie Financiere Lazard Frères and each of their respective successors.

2.03. Amendments to Section 6.2(b) (Certificates; Other Information). Section 6.2(b) of the Credit Agreement is hereby amended by deleting the text of the paragraph in its entirety and replacing it with the word “[Reserved]”.

Section 3. Representations and Warranties. The Company represents and warrants to the Administrative Agent and the Banks that immediately before and after giving effect to this Amendment (a) the representations and warranties set forth in Article 4 of the Credit Agreement are true and correct in all material respects on the date hereof as if made on and as of the date hereof (or, if any representation or warranty is expressly stated to have been made as of a specific date, such representation or warranty shall be true and correct in all material respects as of such specific date) and (b) no Default or Event of Default has occurred and is continuing.

Section 4. Conditions Precedent. The amendments set forth in Section 2 hereof shall each become effective on the date this Amendment shall have been duly executed and delivered by the Company, the Administrative Agent and the Required Lenders.

Section 5. Costs and Expenses. The Company agrees to pay the reasonable costs and expenses of the Administrative Agent in connection with this Amendment as provided in Section 12.5(a) of the Credit Agreement.

Section 6. Miscellaneous. Except as herein provided, the Credit Agreement shall remain unchanged and in full force and effect. This Amendment may be executed in any number of counterparts and by different parties hereto in separate counterparts, each of which when so executed shall be deemed to be an original and both of which taken together shall constitute one and the same agreement. Delivery of an executed counterpart of a signature page to this Amendment by electronic transmission shall be effective as delivery of a manually executed counterpart of this Amendment. This Amendment shall be governed by, and construed in accordance with, the law of the State of New York.

[Remainder of the page intentionally left blank.]

-2-

IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be duly executed and delivered in New York, New York by their proper and duly authorized officers as of the date first above written.

[Signature Page to Amendment No.1]

[Signature Page to Amendment No.1]

[Signature Page to Amendment No.1]

[Signature Page to Amendment No.1]