The Sultan of Kelantan, Sultan Muhammad V, took the oath of office as the 15th Yang di-Pertuan Agong on Tuesday morning, signifying a new reign in the Malaysian monarchy. The last king from Kelantan was Sultan Muhammad the fifth’s grandfather, the late Sultan Yahya Petra ibni Sultan Ibrahim who served as the 6th Yang di-Pertuan Agong from 1975 to 1979.