Rukn al-Dīn Mesud Klada ibn Kilij Arslan or Mesud I (Modern Turkish: I. Rükneddin Mesud or Masud was the sultan of the Sultanate of Rûm from 1116 until his death in 1156.
Coinage of Rukn al-Din Mas'ud I. AH 510-551 (AD 1116-1156). Obverse: Half-length facing bust of Byzantine emperor.
The Alâeddin Mosque in Konya was built during the reign of Mesud I. The building served as the “Mosque of the Throne” for the Seljuq Sultans of Rum and contains the dynastic mausoleum.
Kilij Arslan II or ʿIzz ad-Dīn Kilij Arslān ibn Masʿūd was a Seljuk Sultan of Rûm from 1156 until his death in 1192.
The Tomb of Kilij Arslan II in the courtyard of Alâeddin Mosque, Konya