The Great Mongol Hope

Pope Honorius III (fl.1216 - 1227), in a letter dated 20 June 1221, referred to "forces coming from the Far East to rescue the Holy Land." This was solely speculation, based on old legends of Prester John, a reported Christian king in the Far East who would come to the aid of the Crusades. Stories of the expansion of the Mongol Empire caused some Europeans to believe that the Mongols were Prester John's people, and an important alliance would be forthcoming.

An alliance between Western Europe and the Mongols was not a ridiculous idea. Mongols were already familiar with Christianity: there were Nestorian Christians in the Mongol court (a few decades later, William Rubruck would meet several while traveling). Nestorianism was condemned as heresy at the 431 Council of Ephesus, but at least they weren't Muslims.

Muslims were a problem for Western Christians; they were also enemies of the Mongols. While the Fifth Crusade was besieging Damietta in Egypt in June 2018, stories of Genghis Khan's successful conquests sparked the belief that this was Prester John or a descendant heading westward to aid the Crusade. The hoped-for arrival of a powerful army to help the Crusade did not appear, but attempts were made afterward to form an alliance with Genghis and his descendants.

Pope Innocent IV (fl.1243 - 1254) was the first to write to the Khans, sending letters with envoys that would take years to find their recipients and return with replies. Alliances were hampered by the deaths of Genghis and his successor Ögedei (Innocent's letter never got to Ögedei). The next Great Khan, Güyük Khan, sent a less-than-satisfying reply.

Despite their common enemy in the Muslim world, the difficulty was that the popes wanted obedience to themselves as pope, expecting Mongols to convert to Christianity, and the Mongol Khans expected obedience to them as secular rulers, demanding homage.

Military cooperation was still a possibility—assuming the pope's demands for conversion stayed out of the negotiations. Öljaitü (fl.1282 - 1316) wrote in 1305 to Philip IV of France, Pope Clement V, and Edward I of England (see illustration for the letter in the French archives, the only copy extant), suggesting military collaboration, assuring him that Europeans could travel safely through their lands:

"Now all of us, Timur Khagan, Tchapar, Toctoga, Togba and ourselves, main descendants of Gengis Khan, all of us, descendants and brothers, are reconciled through the inspiration and the help of God. So that, from Nangkiyan [China] in the Orient, to Lake Dala our people are united and the roads are open." [link]

Mongols by this time had converted to Islam, but still were open to allowing Christians free access to the Holy Land. That did not mean, however, that the Mongols were not bent on expanding their empire as much as possible. One of their conquests was the large Kingdom of Georgia, whose queen submitted in order to save the lives of her people. I'll tell you that story next time.