Noun
English Wikipedia has an article on:manorialismWikipedia
manorialism (uncountable)
A political, economic and social system in medieval and early modern Europe; originally a form of serfdom but later a looser system in which land was administered via the local manor.
Variation among manors Like feudalism which, together with manorialism, formed the legal and organizational framework of feudal society, manorial structures were not uniform. Source: Internet
In many countries, feudalism and manorialism provided a formal social structure that established hierarchical links at every level of society, with the monarch at the top. Source: Internet