Detailed Instructions: Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.
Q: Context : When Liu Qi died shortly after Liu Bei secured his position in the area, the latter succeeded the former as the new governor of Jing Province, and went to Jianye to marry Sun Quan's younger sister Lady Sun in order to legitimatise his succession.
Answer : Lady Sun
A:
What is Liu Bei's spouse's name?