Question: What is the date of birth of Al-Muhtadee Billah's father?
Sentence (from "Hassanal Bolkiah"): Ali Saifuddien Sa'adul Khairi Waddien Sultan and Yang di-Pertuan of Brunei Darussalam; born 15 July 1946) is the 29th and current Sultan and Yang di-Pertuan of Brunei, as well as the Prime Minister of Brunei, making him one of the last absolute monarchs.
Relevant evidence: Yes