Seljuq of Rum, The Three Brothers, gold Dinar, AH 648 / 1250/51 AD, Konya, citing all three brothers, ‘Izz al-Din Kayka ‘us II, Rukn al-Din Qilij Arslan IV, and ‘Ala al-Din Kayqubad II, 4.42g (A. A1227). Mint State, lustrous, virtually as struck.
After the Battle of Köse Dagh, the Seljuq ruler Kaykhusraw II remained on the throne, his authority virtually vanished amidst the disgrace of his defeat. Two of his sons, ‘Izz al-Din Kayka’us II and Rukn al-Din Qilij Arslan IV claimed their inheritance, however, this did not please the Great Khan Güyük who decided to make making all three sons of Kaykhusraw II joint rulers. The rule of the three brothers was marked by plotting and intrigue among mercenaries who constantly transferred their allegiance from one brother to another.