Muwallil Wasit I of Sulu

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Sultan Muwallil Wasit (in his Tausug name) (reigned, 1610–1650), is the 9th Sultan of Sulu and was also known as Rajah Bongsu I. His birth name was Pangiran Shahbandar Maharajalela, and was the youngest son of former Sultan of Brunei Muhammad Hassan. He reigned in Sulu after his uncle, Sultan Batara Shah Tengah died without an heir. He was most likely sent to Sulu to end dynastic troubles there, as he was begot of the marriage of Batara Tengah's Sister, and the Sultan of Brunei.^[1] On his coming to Sulu in 1609, he was brought by his father Sultan Muhammad Hassan brought along with his royal symbol's called as "Pulau Janggi" (in Sulu) and "Sepong Janggi" (in Brunei). This royal symbol was a symbol of brotherhood between the Sultanate of Sulu and the Sultanate of Brunei and as a royal proof that Raja Bongsu-I really belonged to the royal family of Brunei.

During his reign, he organised various marriage agreements particularly with Sultan Qudarat who married his daughter in 1632 and even inherited the throne as Sultan Nasir ud-Din. After his death in 1650, another one of his daughters married Rajah Baratamay (also spelled Balatamay) of Buayan in 1657, further strengthening kinship between Sulu and Maguindanao.^{[citation needed]}

Prior to his death in 1650, he was succeeded by Sultan Salah ud-Din Bakthiar who took the throne of the "other" sultan Nasir ud-Din II earlier in 1648.

His descendants are the Kiram, Shakiraullah and Maharajah Adinda families of the later sultans.