Sultan Alauddin Riayat Shah ibni Almarhum Sultan Abdul Ghafur Muhiuddin Shah was the 13th Sultan of Pahang who reigned from 1614 to 1615. He seized the throne after killing his father, Abdul Ghafur Muhiuddin Shah and elder brother, the heir apparent Raja Abdullah. His name is identified based on the recent discovery of a treaty with his seal attached, in the Portuguese National Archives in Lisbon.[citation needed] It was recorded that he entered into treaty relations with the Portuguese Malacca on 16 August 1614.