My teacher is asking me to define the word "aristocratic pauper" and add the part of speech. I can't find it anywhere on the internet. Does anyone know the definition?

in macbeth, banquo, who in real life had willing in the murder of king duncan, is portrayed as a loyal subject of the king himself. many analysts believe that shakespeare had done this in order to king james, who supposedly was a direct descendant of banquo himself.

hope this ! : )