Question: When did Zhu Quan's father die?
Sentence (from "Zhu Yunlai"): Zhu and his father, Zhu Rongji, by family tradition, are descendants of Zhu Yuanzhang( Hongwu Emperor), the founding emperor of the Ming dynasty, through the line of Zhu Pian, Zhu Yuanzhang's 18th son.
Relevant evidence: No