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1. The sublease of a portion of a feudal estate by a vassal to a subtenant who pays fealty to the vassal.
2. The lands so leased.

sub′in·feu′da·to′ry (-fyo͞o′də-tôr′ē) adj.


1. (Historical Terms) (in feudal society) the granting of land by a vassal to another man who became his vassal
2. (Historical Terms) the tenure or relationship so established
References in periodicals archive ?
Such complex political arrangements were common at the time and the numerous enclaves, complex (and rarely obvious) political boundaries, endless issues of subinfeudation, as well as Burgundy's expansionary hopes in regard to the Duchy of Bar, were enough to make understandable any confusion Joan, or anyone else for that matter, might have felt about her identity or native allegiance.
Medieval statutes such as the Statute of Quia Emptores (1290) forbidding subinfeudation, and the Statute de Donis Conditionalibus (1285), by which a donee could alienate land to bar the right of nominated issue to take, were indeed very important to the law of property and had to be fitted into the medieval law of property by judges and property lawyers.
While examining the development of specific clauses or formulae that qualify and insure benefices, Postles demonstrates how both the intentions and practice of gifting in free alms (frankalmoign) descended to a mixture of partial alms, partial payments, and concessions, especially in cases involving subinfeudation.
125) This rule has been a constant feature of property law since the 1290 statute of Quia Emptores, which ended subinfeudation and established a more straightforward regime for the sale of land.
Through the practice of subinfeudation, the levy--generally substantially increased--was passed down the line from landowner to developer to builder to house agent to purchaser.