The Black Death also helped a lot. It reset a lot of property relationships by leaving a lot of free land after farmers and their whole families died out - in Norway it took about 200 years before most of the farms were back in operation, and when the population was expanding again there were tax breaks for restarting farms. We can see the extent of it today in the prevalence of last names like Ødegård, Ødegaard and similar (literally "deserted farm"), and similar place names.