subst. a nobleman : Nobilissimus, most noble , under the later emperors, a title of the Cæsars and of the members of the imperial family

http://lila-erc.eu/data/lexicalResources/LewisShort/id/LexicalSense/n31065.4_nobilis an entity of type: LexicalSense

subst. a nobleman : Nobilissimus, most noble , under the later emperors, a title of the Cæsars and of the members of the imperial family 
subst. a nobleman : Nobilissimus, most noble , under the later emperors, a title of the Cæsars and of the members of the imperial family 

data from the linked data cloud