Rabban Bar Sauma -(c. 1220–1294) Turkic/Mongol monk - wiki - turned diplomat of the Nestorian Christian faith. He is known for embarking on a pilgrimage from Mongol-controlled China to Jerusalem with one of his students, Rabban Markos. Due to military unrest along the way, they never reached their destination, but instead spent many years in Mongol-controlled Baghdad. Markos was eventually chosen as Nestorian Patriarch, and later suggested his teacher Rabban Bar Sauma be sent on another mission, as Mongol ambassador to Europe. The elderly monk met with many of the European monarchs, as well as the Pope, in attempts to arrange a Franco-Mongol alliance. The mission bore no fruit, but in his later years in Baghdad, Rabban Bar Sauma documented his lifetime of travel. He began in Pekin, China and traveled as far as Normandy during the reign of Edward I and Phillip the Fair.