Question: When was Empress Cao (Song Dynasty)'s husband born?
Sentence (from "Emperor Renzong of Song"): Emperor Renzong of Song (30 May 1010 – 30 April 1063, Chinese calendar: 14 April 1010（the 3rd year of Dazhongxiangfu, ） - 29 March 1063 (the 8th year of Jiayou)), personal name Zhao Zhen, was the fourth emperor of the Song dynasty in China.
Relevant evidence: Yes