From William MacAskill's book What We Owe The Future:
“Following the Black Death in the fourteenth century, serfdom was soon replaced by free labour throughout Western Europe.”
This line is footnoted with reference as follows from Encyclopedia Britannica 2019b:
“The Black Death caused labour shortages that, in conjunction with growing central government power and peasant uprisings, contributed to the replacement of serfdom with a system of free peasantry by the end of the fifteenth century.”
Just thought it was interesting.