subvassal
/ˈsʌbˌvasl/Chiefly Scottish Law. Now historical
noun
A person who holds land as the vassal of a person who himself or herself holds the land as a vassal, in later use usually in return for the annual payment of feu duty.
- The Scottish vassalage system was abolished in 2000 by the Abolition of Feudal Tenure (Scotland) Act..
Origin
Late 15th century; earliest use found in Acts of Lords of Council in Civil Causes. From sub- + vassal adjective.