raja buaya 98Rajah Buayan is a landlocked municipality in the coastal province of Maguindanao. The municipality has a land area of 71.98 square kilometers or 27.79 square miles whichRajah Buayan, previously known as Sapakan, rose to prominence as the capital of Buayan during Datu Uto 's ren in 1875. It also served as the seat of power for the Sultanates of Tinungkup