Title: The History of Yaballaha III, Nestorian patriarch, and of his vicar, Bar Sauma, Mongol ambassador to the Frankish courts at the end of the thirteenth century
Subjects: Voyages and travels, Nestorians
People: Ṣâumā Rabban (d. 1293?), Yabhalaha III Patriarch of the Nestorians (1244?-1317)