castellan

noun

1. (obsolete)A feudal lord with a fortified manor.
2. (historical)The governor or caretaker entrusted to oversee a castle or keep for its lord.

   “The inferior secular senators are ninety-two, containing the ten crown-officers, and eighty-two castellans. The latter are again divided into thirty-three great castellans, and forty-nine little castellans.”

   “Castellans, often exercising control over a few villages and half a dozen small lordships, transformed their banal lordships into quasi-sovereign mini-states, independent of royal or comital sanction or control.”

   “The wave of attacks on the castellans in 1511 followed faction-fighting in Udine, in which castellans and their families were massacred by supporters of the Savorgnan.”