Attached files

file filename
8-K - FORM 8-K - Allied World Assurance Co Holdings, AGd877642d8k.htm
EX-3.1 - ORGANIZATIONAL REGULATIONS OF ALLIED WORLD ASSURANCE COMPANY HOLDINGS, AG - Allied World Assurance Co Holdings, AGd877642dex31.htm

Exhibit 16.1

February 20, 2015

Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549-7561

Dear Sirs/Madams:

We have read Item 4 of Allied World Assurance Company Holdings, AG’s Form 8-K dated February 20, 2015, and we agree with the statements made therein.

Yours truly,

/s/ DELOITTE LTD.

DELOITTE LTD.

Hamilton, Bermuda