>>489239>Capitalist finance relies on interest‑bearing money and abstract capital features absent until the late medieval and early modern periods.You seem to be engaging in some very fine pedantry here. If by "capitalist finance" you mean "finance for industrial capital", then fine, OK, that particular thing is obviously exclusive to the economic system that displaced feudalism and which we are currently living through. "Finance capital" on the other hand is simply any time a loan is given with interest. It predates industrial capital (the form of capital that actually established
capitalism) by several thousand years and in fact it even predates the invention of currency. Throughout the history of civilization there has existed both a
class of people whose primary occupation is living off rent and a
class of people who needed to take out loans from them to get by. The word
class is appropriate here because their interests often worked together and in opposition to other classes in society. They didn't need to wait until capitalism to invent themselves or their respective class conflicts.
You should read Michael Hudson's work on this subject, while there are some rulers who simply wanted to stabilize their society by freeing people from debt bondage, there are also some pretty clear-cut instances of both ancient and classical/medieval rulers going to war against the creditor class because they saw them as a threat to their own rule.