Kaykaus II
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Kaykaus ibn Kaykhusraw or Kayka'us II was the sultan of Rum from 1246 until 1262.
1251 Persian manuscript of Ali ibn Khalifa Salmasi's Durar-e makhzan-e kaykawusi ("The Pearls of the Treasury of Kay Kawus"), commissioned for the library of Sultan Kaykaus II. Created in Konya.
Kilij Arslan IV
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Kilij Arslan IV or Rukn ad-Dīn Qilij Arslān ibn Kaykhusraw was twice the Seljuk Sultan of Rûm from 1249 to 1254 and later from 1257 to 1266.
Kaykaus II
…to prevent the Mongol conquest of Anatolia. For most of his tenure as the Seljuk Sultan of Rûm, he shared the throne with one or both of his brothers, Kilij Arslan IV and Kayqubad II. Mongol commander Baiju threatened him and warned him of being late with paying tribute and requested new pastures in Anatolia for the…
Rare coin minted under Kilij Arslan IV at Sivas in 1248/49