Question: What is the date of death of Sima You's father?
Sentence (from "Sima Zhao"): In 263, despite opposition, he decided to take advantage of the present weakness in Shu Han to the west and launched an invasion against it, which eventually managed to convince its emperor, Liu Shan, towards formally surrendering, tipping the decades-long established balance of power decisively in Wei's favor.
Relevant evidence: No