Conversation so far:
When did Abu Bakr's son-in-law Muhammad die?
Abu Bakr's son-in-law Muhammad died on Monday, 8 June 632, in Medina, at the age of 62 or 63, in the house of his wife Aisha.

Question: What led to his death?
Self-contained rewrite: What led to Abu Bakr's son-in-law Muhammad death?