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 : Betty Fibichova (16 March 1846 -- 20 May 1901) was a Czechoslovak opera singer and the wife of composer Zdenek Fibich.
Answer : Zdenek Fibich
A:
What is Betty Fibichova's spouse's name?