Mongol khans demanded submission rather than accepting Christian conversion missions

Evidence

Louis IX, whose two Crusades affirmed his reputation for sanctity in spite of (or perhaps because of) their military failure, hoped to convert the Mongol khan. … The khan responded by demanding French submission and annual tribute: Louis, Joinville tells us, bitterly regretted that he had ever sent his envoys to the khan. — John V. Tolan, Saracens, 1038

Categorization

• XREF: Pre-echo of the Islam-Mongol-West triangulation in later crusade-era encounters mapped in the vault; conversion diplomacy failing against non-Christian sovereigns parallels similar failures in Muslim contexts.