ministerialis means A non-noble (originally unfree) official or retainer under certain feudal systems, especially in the Holy Roman Empire, who had specific military duties to his lord. Lexicurio rates it Rare gem — a strength score of 78 out of 100.
noun
- A non-noble (originally unfree) official or retainer under certain feudal systems, especially in the Holy Roman Empire, who had specific military duties to his lord.“Royal officials, recruited from ministeriales, were posted to oversee crown lands, castles, and the growing number of imperial towns that the Staufers also actively promoted.”