Conversation so far:
Where was Mwai Kibaki born?
Mwai Kibaki was born in Thunguri village, Othaya division of Kenya's then Nyeri District, now Nyeri County.
When was Mwai Kibaki born?
Mwai Kibaki was born 15 November 1931.

Question: Does he have siblings?
Self-contained rewrite: Does Mwai Kibaki have siblings?