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Süleyman Ibn Kutalmish (سليمان بن قتلمش Sulāyman bin Qutalmish, also Suleiman ibn Kutalmish; died in 1086) was the Seljuk ruler of the Sultanate of Rüm in Anatolia from 1077 until his death. Before rising to power, he conquered the Byzantine cities of Nicaea (Iznik) and Nicomedia (Izmit) in 1075. He succeeded his father Kutalmish as the ruler of the Anatolian possessions of the Great Seljuk Sultan Malik Shah I, a distant cousin to Süleyman.
Süleyman revolted against Malik Shah and proclaimed himself the Sultan of Rüm, establishing his capital at Nicaea. He expanded his realm but was killed near Antioch (Antakya) in 1086 by Tutush I, the Seljuk ruler of Syria. Süleyman's son, Kilij Arslan I, was captured and the lands in Anatolia was confiscated by Great Seljuk. It is uncertain whether Tutush killed Süleyman out of loyalty to Malik Shah or simply for personal gain.