Complex sentence: Her only child succeeded his father as Sultan of Selangor and as Sultan Salahuddin Abdul Aziz Shah ibni Almarhum Sultan Hisamuddin Alam Shah Al-Haj reigned as Malaysia's eleventh Yang di-Pertuan Agong.
Split into simpler sentences: Her only child succeeded his father as Sultan of Selangor and as Sultan Salahuddin Abdul Aziz Shah ibni Almarhum Sultan Hisamuddin Alam Shah Al-Haj. He also reigned as Malaysia's eleventh Yang di-Pertuan Agong.