The History of Mar Jab-Alaha and Rabban Sauma: Histoire de Mar Jab-Alaha, Patriarche, Et de Raban Sauma

This books gives the Syriac text of the account of Yaballaha III, Church of the East Patriarch, and his vicar Bar Sauma, the Mongol Ambassador to the Frankish courts at the end of the thirteenth century.