CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


We consent to the references to our firm under the captions "Financial
Highlights" in the Prospectus and "Independent Registered Public Accounting
Firm" and "Financial Statements" in the Statement of Additional Information
in Post-Effective Amendment Number 53 to the Registration Statement (Form
N-1A, No. 811-06106) of Pioneer Mid Cap Value Fund, and to the incorporation
by reference of our report, dated December 20, 2019, on Pioneer Mid Cap
Value Fund included in the Annual Reports to Shareholders for the fiscal
year ended October 31, 2019.



		           /s/ Ernst & Young LLP


Boston, Massachusetts
February 24, 2020