Item 8.01 Other Events.

On September 7, 2022, Aon Corporation, a Delaware corporation ("Aon Corporation"), Aon Global Holdings plc, a public limited company formed under the laws of England and Wales ("AGH" and, together with Aon Corporation, the "Issuers"), Aon plc, an Irish public limited company ("Aon plc") and Aon Global Limited, a private limited company formed under the laws of England and Wales, and prior to its re-registration, a public limited company formed under the laws of England and Wales named Aon plc ("AGL" and, together with Aon plc, the "Guarantors" and each, a "Guarantor"), entered into an underwriting agreement (the "Underwriting Agreement") with Citigroup Global Markets Inc. and J.P. Morgan Securities LLC as representatives of the several underwriters named therein, with respect to the offering and sale by Aon Corporation and AGH of $500,000,000 aggregate principal amount of their 5.000% Senior Notes due 2032 (the "Notes") under the Registration Statement on Form S-3 (Registration Nos. 333-238189, 333-238189-01, 333-238189-02 and 333-238189-03). Each Guarantor has fully and unconditionally, jointly and severally, guaranteed the Notes pursuant to the Indenture (as defined below) (collectively, the "Guarantees" and, together with the Notes, the "Securities"). The Securities were issued pursuant to an indenture, dated December 3, 2018, as amended and restated on April 1, 2020, as further amended and supplemented by a fourth supplemental indenture on September 12, 2022 (together, the "Indenture"), among Aon Corporation, AGH, the Guarantors and The Bank of New York Mellon Trust Company, N.A., as trustee (the "Trustee").

The net proceeds from the offering, after deducting the underwriting discount and estimated offering expenses payable by the Issuers, were approximately $495,289,406. The Issuers intend to use 10% of the net proceeds from this offering for the general corporate purposes of Aon Corporation and to use 90% of the net proceeds from this offering for the general corporate purposes of AGH.

The Underwriting Agreement and the Fourth Indenture Supplement are filed as Exhibits 1.1 and 4.2 to this Current Report on Form 8-K, respectively, and are incorporated by reference herein. The form of the Notes (including the Guarantees) is filed as Exhibit 4.3 to this Current Report on Form 8-K and is incorporated by reference herein.

In connection with the issuance of the Securities, Sidley Austin LLP is filing the legal opinion attached as Exhibit 5.1 to this Current Report on Form 8-K, Freshfields Brukhaus Deringer LLP is filing the legal opinion attached as Exhibit 5.2 and Matheson is filing the legal opinion attached as Exhibit 5.3 to this Current Report on Form 8-K.

Item 9.01 Financial Statements and Exhibits.




(d) Exhibits.

Exhibit
  No.                                    Description

1.1           Underwriting Agreement, dated September 7, 2022, among Aon
            Corporation, AGH, Aon plc and AGL, and Citigroup Global Markets Inc.
            and J.P. Morgan Securities LLC as representatives of the several
            underwriters named therein.

4.1           Amended and Restated Indenture, dated April 1, 2020, among Aon
            Corporation, Aon plc, AGL, AGH and the Trustee (amending and restating
            the Indenture, dated December 3, 2018, among Aon Corporation, AGL and
            the Trustee) (included in Exhibit 4.6 to the Current Report on Form
            8-K12B filed by Aon plc on April 1, 2020).

4.2           Fourth Indenture Supplement, dated as of September 12, 2022, among
            Aon Corporation, AGH, the Guarantors and the Trustee.

4.3           Form of 5.000% Senior Notes due 2032 (including the Guarantees)
            (included in Exhibit 4.2).

5.1           Opinion of Sidley Austin LLP.

5.2           Opinion of Freshfields Brukhaus Deringer LLP.

5.3           Opinion of Matheson.

23.1          Consent of Sidley Austin LLP (included in Exhibit 5.1).

23.2          Consent of Freshfields Brukhaus Deringer LLP (included in
            Exhibit 5.2).

23.3          Consent of Matheson (included in Exhibit 5.3).

104         Cover Page Interactive Data File (formatted in iXBRL in Exhibit 101).

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