There really wasn't anything of significant value in France or Germany when you contrast it with the wealth of the Persians, China, Egypt, and Constantinople.
The Mongols stopped in Hungary for the same reason they stopped in Vietnam. It made no sense to keep going. The death of Ghengis only adds a massive amount of political infighting into that. It would have been useful to send some of those family members further out to raid wealthier kingdoms, but all the greatest prizes were already seized. France may have been the strongest power in Western Europe, but it was a paltry little kingdom compared to what the Mongols already had. Germany was a confederation of loosely affiliated states that didn't have much in the way of great palaces or wealth. Seizing Vienna or Rome might have been a nice cap to their successes, but they were nothing without access to the Silk Road (now under Mongol control), and Constantinople was bigger. Seizing the Islamic Caliphates (which had access to North African gold) would be much more profitable, and unfortunately, the Muslims were putting up so much resistance that they were actually fucking winning.
Religion of Peace: Defeats Mongols in pitched battle
The Russians were a) standing next to the mongols, b) were closer and more accessible than Hungry.
As for low grasslands... Europe was covered in Forrest. It's why a whole swath of the central Europe used to be called : The Black Forest. It was a big, dark, thick forest. Paris and Madrid simply aren't worth the effort compared to Constantinople.
Considering the Muslim's fight with the Mongols, the Christians probably would have lost, as the Muslims barely survived on their own territory, with highly unified and competent commanders, and benefited from Mongol infighting after the death of the Khan.
Also, the Hungarians were one of the better forces in Europe.
Most of the time, the Christians spent consolidating their forces and letting (or bribing) the Mongols to aim at the Muslims.
There really wasn't anything of significant value in France or Germany when you contrast it with the wealth of the Persians, China, Egypt, and Constantinople.
The Mongols stopped in Hungary for the same reason they stopped in Vietnam. It made no sense to keep going. The death of Ghengis only adds a massive amount of political infighting into that. It would have been useful to send some of those family members further out to raid wealthier kingdoms, but all the greatest prizes were already seized. France may have been the strongest power in Western Europe, but it was a paltry little kingdom compared to what the Mongols already had. Germany was a confederation of loosely affiliated states that didn't have much in the way of great palaces or wealth. Seizing Vienna or Rome might have been a nice cap to their successes, but they were nothing without access to the Silk Road (now under Mongol control), and Constantinople was bigger. Seizing the Islamic Caliphates (which had access to North African gold) would be much more profitable, and unfortunately, the Muslims were putting up so much resistance that they were actually fucking winning.
Religion of Peace: Defeats Mongols in pitched battle
The Russians were a) standing next to the mongols, b) were closer and more accessible than Hungry.
As for low grasslands... Europe was covered in Forrest. It's why a whole swath of the central Europe used to be called : The Black Forest. It was a big, dark, thick forest. Paris and Madrid simply aren't worth the effort compared to Constantinople.
Considering the Muslim's fight with the Mongols, the Christians probably would have lost, as the Muslims barely survived on their own territory, with highly unified and competent commanders, and benefited from Mongol infighting after the death of the Khan.
Also, the Hungarians were one of the better forces in Europe.
Most of the time, the Christians spent consolidating their forces and letting (or bribing) the Mongols to aim at the Muslims.