High Quality Content by WIKIPEDIA articles! Franco-Mongol relations were established in the 13th century, as attempts were made towards forming a Franco-Mongol alliance between the Christian Crusaders and the Mongol Empire against various Muslim empires. Such an alliance would have seemed a logical choice: the Mongols were sympathetic to Christianity as they had many influential Nestorian Christians in the Mongol court. The Franks (Europeans) were open to the idea of assistance coming from the East, due to the long-running legend of a mythical Prester John, an Eastern king in a magical kingdom who many believed would arrive someday to help with the Crusades in the Holy Land. They also shared a common enemy in the Muslim empires. However, despite generations of messages, gifts, and emissaries, the often-proposed alliance was never achieved.