Question: What is the date of birth of Empress Xiaoshengxian's husband?
Sentence (from "Yongzheng Emperor"): The Yongzheng Emperor (13 December 1678 – 8 October 1735), born Yinzhen, was the fifth Emperor of the Qing dynasty, and the third Qing emperor to rule over China proper, reigned from 1722 to 1735.
Relevant evidence: Yes