On June 24, 2009, Aon Corporation ("Aon") issued a press release (the "Press Release") announcing the pricing by its indirect, wholly-owned subsidiary Aon Financial Services Luxembourg, S.A. (the "Issuer") of the Issuer's offering of €500 million of its 6.25% Guaranteed Notes due July 1, 2014 (the "Notes"). Aon will unconditionally and irrevocably guarantee the payment of the principal and interest in respect of the Notes.

The Notes have not been, and will not be, registered under the United States Securities Act of 1933, as amended (the "Securities Act"). The Notes have been offered for sale exclusively outside the United States to non-U.S. investors in the non-U.S. capital markets in accordance with Regulation S under the Securities Act, and may not be offered, sold or delivered within the United States or to or for the account or benefit of U.S. persons except pursuant to an exemption from or in a transaction not subject to the registration requirements of the Securities Act. Neither this Form 8-K nor the Press Release constitute an offer to sell or the solicitation of an offer to buy any of the Notes, nor shall there be any sale of the Notes, in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of such jurisdiction.

A copy of the Press Release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

(a) - (c) Not applicable.

(d) Exhibits:

Exhibit
Number    Description of Exhibit
   99.1   Press Release of Aon Corporation