Recently, I stumbled upon the 6:40+ hour YouTube video, “The Mongols - Terror of the Steppe.” You might like it https://www.youtube.com/watch?v=PdFwMDuAnS4
Well, surprising, as they were supporting military actions against Mongols, plus medieval France was nothing like Mongols empire in terms of social live organization, way of fighting wars (e.g. https://en.wikipedia.org/wiki/Peace_and_Truce_of_God).
Later, in XV century, France started to turn into Mongols-like regime, but those weren't medieval times.
The Story Of The Mongols Whom We Call The Tartars by Friar Giovanni DiPlano Carpini (an Account of his embassy to the court of the Mongol Khan in 1245-1247) - https://archive.org/details/the-story-of-the-mongols-whom-we...
The cover; a picture of a Mongol Warrior in full Panopoly, is itself worth the price of the book!
This timeline coincides with the Crusades with, which the article talks about at length. I find the Crusades fascinating because they've shaped the modern world in so many ways.
Dan Carlin (of Hardcore History fame) once said that why he cares about military history is it shapes the world. If you look at the lightbulb, it doesn't really matter who invented it. Somebody would've. But take the Battle of Marathon, which shaped the entire history of Western Europe as the Greeks repelled the Persians. History would've been completely different. Or how Cyrus II (IIRC) essentially saved Judaism by rebuilding the Temple. Without that, Judaism may well have died out and, with it, all the Abrahamic religions may never have existed.
So the Crusades are fascinating because they've often portrayed as a religious war but they were anything but. Religion was simply the excuse. Instead medieval powers wanted to control the Levant to enrich themselves.
The Crusades essentially created international banking, making the Knights Templar incredibly wealthy [1]. One wonders if this was a necessary condition to the rise of the mercantile class that eventually displaced feudalism and brought on capitalism.
But back to the French. It's interesting that they were fascinated with the Mongols with everything else that was going on. During this same period, the Eastern Roman Empire still existed and the Moors occupied the Iberian peninsula. In many ways, the Mongols were more distant whereas the Arab "threat" was closer and more real. So why the Mongols?
[1]: https://bigthink.com/the-past/knights-templar-crusades-finan...