Kilij Arslan II

Seljuk Sultanate of Rûm, 1190
Seljuq sultans of Rum
Reign	1156-1192
Predecessor	Mesud I
Successor	Kaykhusraw I
Died	1192
Full name Izz al-Dīn Qilij Arslān bin Mas'ūd
House	House of Seljuq

Kilij Arslan II (Old Anatolian Turkish: قِلِج اَرسلان دوم) or ʿIzz ad-Dīn Qilij Arslān bin Masʿūd (Persian: عز الدین قلج ارسلان بن مسعود‎‎) (Modern Turkish Kılıç Arslan, meaning "Sword Lion") was a Seljuk Sultan of Rûm from 1156 until his death in 1192.

As Arnold of Lübeck reports in his Chronica Slavorum, he was present at the meeting of Henry the Lion with Kilij-Arslan during the former's pilgrimage to Jerusalem in 1172. When they met near Tarsus, the sultan embraced and kissed the German duke, reminding him that they were blood cousins ('amplexans et deosculans eum, dicens, eum consanguineum suum esse'). When the duke asked for details of this relationship, Kilij Arslan informed him that 'a noble lady from the land of Germans married a king of Russia who had a daughter by her; this daughter's daughter arrived to our land, and I descend from her.' The Russian king in question is assumed to have been Svyatoslav II.

In 1159, Kilij Arslan attacked Byzantine emperor Manuel I Comnenus as he marched past Iconium (Konya, capital of Rüm), as Manuel returned from negotiating with Nur ad-Din Zengi in Syria. In 1161 Manuel's nephew John Contostephanus defeated Kilij Arslan, and the sultan travelled to Constantinople in a show of submission. In 1173 Kilij Arslan, now at peace with the Byzantines, allied with Nur ad-Din against Mosul.