You will be given a definition of a task first, then some input of the task.
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.

Context : Margarethe von der Saale (1522 -- 6 July 1566), was a German lady in waiting and noble, morganatic spouse by bigamy to Philip I, Landgrave of Hesse.
Answer : Philip I, Landgrave of Hesse
Output:
What is Margarethe von der Saale's spouse's name?