(Sultan Anwar ud-Din of Buayan) wanted his brother-in-law Datu Mamaku (a son of Sultan Qudratullah Untong) to become Sultan. The Spaniards, however, wanted the sultanate to go to one of the Sibugay datus. Around the end of 1900, Sultan Mangigin transferred his residence from Cotabato to Sibugay. In 1906, he married Rajah Putri, the widow of Datu Utto and sister of Datu Mamaku. 22. Sultan Muhammad Hijaban Iskandar Mastura KudaratHe acceded the throne upon Mangigin's death in 1926. By this time, the Sultanate assumed a more ceremonial, traditional character. It continued to be the central institution for traditional and religious affairs of the Maguindanao and Iranun peoples. Pretenders As of May 2018, there are three major royal families in Maguindanao. Each having an enthroned sultan under the Sultanate of Maguindanao, Kingdom of Rajah Buayan, and Domain of Allah Valley. See also List of Sunni Muslim dynasties Johor Sultanate Sultanate of Sulu References External links Laarhoven, Ruurdje. "WE ARE MANY NATIONS: THE EMERGENCE OF A MULTI-ETHNIC MAGUINDANAO SULTANATE." Philippine Quarterly of Culture and Society 14, no. 1 (1986): 32–53. WE ARE MANY NATIONS: THE EMERGENCE OF A MULTI-ETHNIC MAGUINDANAO SULTANATE. http://nlpdl.nlp.gov.ph:81/CC01/NLP00VM052mcd/v1/v31.pdf History of Mindanao Former countries in Philippine history Maguindanao Muslim dynasties History of Maguindanao del Norte History of Maguindanao del Sur Moro people Filipino royalty History of the Philippines (900–1565) History of the Philippines (1565–1898) States and territories established in 1508 States and territories disestablished in 1888 1508 establishments in the Philippines 1888 disestablishments in the Philippines 1508 establishments in Asia 1888 disestablishments in Asia Maritime Southeast Asia Former countries in Indonesian history Former countries