Actually I posted this simply because I found it interesting. I had thought all along that Genghis Khan was a Muslim. I wonder who converted the Mongols to Islam, and when.
IIRC, it was towards the end of the Crusading period most of the Mongol states converted to Islam.
There were conversations between the Christian powers and the Ilkhanate of Persia about an alliance versus the Muslims in the middle east. Even a small chance of the Ilkhanate converting to Christianity - one ruler married a Byzantine nobelwoman (well, she was a probably a bastard, but the Byzantines didn't see fit to mention that to her Mongol husband). The Ilkhanate of Persia, Golden Horde, and Chagatai Horde all converted to Islam eventually though.
When the Ilkhanate sacked Baghdad it caused serious animus with the Golden Horde to the north, so they had probably already converted by that point, or were about to.