FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * Spruell Byron (Last) (First) (Middle) 200 E. RANDOLPH ST. (Street) CHICAGO IL 60601 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 10/27/2020	3. Issuer Name and Ticker or Trading Symbol Aon plc [ AON ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner Officer (give title below) Other (specify below)	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. 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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
No Securities are beneficially owned	0	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Molly Johnson- Molly Johnson pursuant to a power of attorney from Byron Spruell	11/05/2020
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** 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 is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

POWER OF ATTORNEY

I, Byron Spruell ("Grantor"), hereby confirm, constitute and appoint each of
Darren Zeidel, Julie Cho, Molly Johnson and Matthew Cavanaugh, or any of them
signing singly, and with full power of substitution, as the true and lawful
attorney-in-fact of Grantor to:

1. prepare, execute in Grantor's name and on Grantor's behalf, and submit to the
United States Securities and Exchange Commission (the "SEC") a Form ID,
including amendments thereto, and any other documents necessary or appropriate
to obtain codes and passwords enabling the undersigned to make electronic
filings with the SEC of reports required by Section 16(a) of the Securities
Exchange Act of 1934, as amended (the "Exchange Act") or any rule or regulation
promulgated by the SEC;

2. execute for and on behalf of Grantor, in Grantor's capacity as an officer,
director or greater than ten percent shareholder of Aon plc (the "Company"),
Forms 3, 4 and 5, including but not limited to any amendments thereto, in
accordance with Section 16(a) of the Exchange Act, and the rules promulgated
thereunder, which may be necessary or desirable as a result of Grantor's
ownership of or transaction in securities of the Company; and

 3. do and perform any and all acts for and on behalf of Grantor which may be
 necessary or desirable to complete and execute any such Form 3, 4 or 5 or any
 amendments thereto, and timely file such form with the SEC and any other stock
 exchange or similar authority.

Grantor hereby grants to each such attorney-in-fact full power and authority to
do and perform any and every act and thing whatsoever requisite, necessary or
proper to be done in the exercise of any of the rights and powers herein
granted, as fully to all intents and purposes as the undersigned might or could
do if personally present, with full power of substitution or revocation, hereby
ratifying and confirming all that such attorney-in-fact, or such attorney-in-
fact's substitute or substitutes, shall lawfully do or cause to be done by
virtue of this power of attorney and the rights and powers herein granted.
Grantor acknowledges that the foregoing attorneys-in-fact, in serving in such
capacity at the request of Grantor, are not assuming, nor is the Company
assuming, any of Grantor's responsibilities to comply with Section 16 of the
Exchange Act.

This Power of Attorney shall be effective on the date set forth below and shall
continue in full force and effect until the date on which Grantor shall cease to
be subject to Section 16 of the Exchange Act and the rules promulgated
thereunder or until such earlier date on which written notification executed by
Grantor is filed with the SEC expressly revoking this Power of Attorney.

IN WITNESS WHEREOF, Grantor has caused this Power of Attorney to be executed as
of this  27th day of October, 2020.


Signature:        /s/ Byron Spruell
                  Byron Spruell
 

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