House of Seleucus
Bevan - The House of Seleucus. Volume I. 1902
Miller - The Latins in the Levant a History of Frankish Greece (1204-1566). 1908
History of the Eastern Roman Empire
Watters - On Yuan Chwang’s Travels in India (A.D. 629-645). 1904
Bury - A History of the Eastern Roman Empire From the Fall of Irene to the Accession of Basil I, A. D. 802-867. 1912
Mundy - Liberty and Political Power in Toulouse, 1050-1230. 1950