In 1287, the elderly Bar Sauma embarked on his journey to Europe, bearing gifts and letters from Arghun to the
Eastern Roman emperor, the Pope, and the European kings. Rabban Bar Sauma traveled with a large retinue of assistants, and 30 riding animals. Companions included the Church of the East Christian (
archaon) Sabadinus; Thomas de Anfusis (or Tommaso d'Anfossi), who helped as interpreter and was also a member of a famous
Genoese banking company; and an Italian interpreter named Uguetus or Ugeto (Ughetto). Bar Sauma likely did not speak any European languages, though he was known to be fluent in Chinese, Turkic, and Persian, and he was able to read Syriac. Europeans communicated to him in Persian. He traveled overland through Armenia to either the
Empire of Trebizond or through the
Sultanate of Rum to the
Simisso on the
Black Sea, then by boat to
Constantinople, where he had an audience with
Andronicus II Palaeologus. Bar Sauma's writings give a particularly enthusiastic description of the beautiful
Hagia Sophia. In
Gascony in southern France, which at that time was in English hands, Bar Sauma met King
Edward I of England, probably in the capital of
Bordeaux. Edward responded enthusiastically to the embassy, but ultimately proved unable to join a military alliance due to conflict at home, especially with the
Welsh and the
Scots. Upon returning to Rome, Bar Sauma was cordially received by the newly elected
Pope Nicholas IV, who gave him communion on
Palm Sunday, 1288, allowing him to celebrate his own
Eucharist in the capital of Latin Christianity. The delivered letters were in turn answered by Arghun in 1289, forwarded by the Genoese merchant
Buscarello de Ghizolfi, a diplomatic agent for the Il-khans. In the letter to Philip IV, Arghun mentions Bar Sauma: , dated 1289, in which Rabban Bar Sauma is mentioned. The seal is that of the Great Khan, with Chinese Script: 「輔國安民之寶」, which means "Seal of the upholder of the State and the purveyor of peace to the People". French National Archives. The exchanges towards the formation of an alliance with the Europeans ultimately proved fruitless, and Arghun's attempts were eventually abandoned. However, Rabban Bar Sauma did succeed in making some important contacts which encouraged communication and trade between the East and West. Aside from King Philip's embassy to the Mongols, the Papacy also sent missionaries such as
Giovanni da Montecorvino to the Mongol court. ==Later years==