What effect did the Black Death have on the institution of feudalism? It weakened feudalism by wiping out the peasantry who provided all the labor on manors.
It caused a new era of feudalism in which peasants could achieve ownership of manors.
It weakened feudalism by killing most of the noble class, leaving no one to rule the manors.
It made feudalism stronger by leaving the peasantry weak and more dependent on their lords.