Sultanat Pontianak-Kadriyah

The Pontianak Kadriyah Sultanate (Jawi: کسلطانن قدرية ڤنتيانق ) was a Arab-Malay state that existed on the western coast of the island of Borneo from the late 18th century until its disestablishment in 1950. It was founded in 1771 by Sultan Syarif Abdurrahman Ibni Alhabib Husein bin Ahmad Alkadrie, a descendant of Husayn ibn Ali, in the area of the mouth of the triple junction of the small Kapuas River and the porcupine river which included a small area ceded by the Sultan of Banten to the Dutch VOC. He had two political marriages in Kalimantan, the first to the princess of the Mempawah Kingdom, Utin Chandramidi, and the second in 1768 to Ratu Syahranum (Ratoe Sarib Anom) of the Banjar Sultanate (daughter or brother of Sultan Saat/Sulaiman Saidullah I), earning him the title Pangeran Nur Alam.