Question: Who is the father-in-law of Empress Zhang (Hongxi)?
Sentence (from "Hongxi Emperor"): The Hongxi Emperor (洪熙 ; 16 August 1378 – 29 May 1425), personal name Zhu Gaochi (朱高熾), was the fourth Emperor of the Ming dynasty, reigned from 1424 to 1425.
Relevant evidence: No