This book deals with the history of Eastern Anatolia in the first half of the 12th century. It includes an edition of part of the unpublished manuscript of the Tarikh Mayyafariqin (BL.Or. 5803 and 6310, kept in the British Library) of the 12th century historian Ibn al Azraq, and English translation of the text and an extended commentary on it - a historical and historiographical introduction - genealogical tables and indices. The book will be of interest to historians of Eastern Turkey as well as those interested in Mediaeval Arabic historiography, the later Seljuks and the Gazira at the time of the first and second crusades. It will also be relevant to Arabists on account of the pecularities of the Middle Arabic used by the author.