Perak is a constitutional monarchy, with a ruler elected by an electoral college composed of the major chiefs. The Sultan is the constitutional head of Perak. The current Sultan of Perak is Nazrin Shah, who acceded to the throne on 29 May 2014. The main royal palace is the Iskandariah Palace in Kuala Kangsar. Kinta Palace in Ipoh is used by the sultan as an occasional residence during official visits. Other palaces in Ipoh include the Al-Ridhuan Palace, Cempaka Sari Palace, and Firuz Palace.