vavasour
/ˈvævəˌsʊə(r)/noun
- historical a vassal owing allegiance to a great lord and having other vassals under him〈史〉封臣（领有封地并有自己的家臣）。
词源
Middle English: from Old French vavas(s)our, from medieval Latin vavassor, perhaps from vassus vassorum 'vassal of vassals'.