Fakhr al-Din Kara Arslan (or Qara Arslan) (r. 1144âÂÂ1174 CE) was a member of the Artuqid dynasty and son of Rukn al-Dawla DÃÂÃ¾à «d, bey of Hasankeyf. Kara Arslan ruled Hasankeyf following DÃÂÃ¾à «d's death on 19 Muharram 539 (22 July 1144). He was the father of Nur al-Din Muhammad.