Question: What is the date of birth of Tunku Ampuan Najihah's father?
Sentence (from "Tunku Ampuan Najihah"): Almarhum Tunku Besar Burhanuddin (Jawi: تونكو امڤوان ناجيهه بنت المرحوم تونكو بسر برهانالدين; born 1 September 1923) is the Tunku Ampuan of Negeri Sembilan.
Relevant evidence: Yes