the habsburgs dominated austria and some other free states of the hre. they also conquered your chink snub nosed mongolian race.   horses were first bred for eating and not drafting. horses sucked at drafting. only after centuries of tech development did they invent the bit to better chariot warfare. you would need four horses in a quadriga fratello. horses pull with the neck. which asfixiates them. hence chariot warfare not being developed in the steppe.
Portugal