1923–2011).[2][3] He was named Tengku Idris Shah at birth.[4] His father was the eldest son of Hisamuddin of Selangor and Raja Jemaah, who later became the second Yang di-Pertuan Agong and Raja Permaisuri Agong of Malaysia. His mother was the grandchild of both Sulaiman of Selangor and Abdul Jalil of Perak.[5] As such, his parents were first cousins.