This question is based in mythology and folklore and doesn't have a universally agreed-upon answer. The answer depends on the specific mythological system being referenced. Therefore, there is no one definitive husband of death.
Possible Interpretations and Answers:
Since the question is ultimately mythological, several interpretations are possible depending on the specific mythological system in question. The concept of "death" is often personified as a deity, but the existence of a "husband of death" is less common.
It is also possible that the question is intentionally misleading or part of a riddle.
Therefore, without more context, a single definitive answer cannot be provided.