Question:  Sheila Mullen is a Scottish painter whose works are in the permanents collection of the senior patrilineal descendant of who?
Sentence (from "Richard Scott, 10th Duke of Buccleuch"): Richard Walter John Montagu Douglas Scott, 10th Duke of Buccleuch and 12th Duke of Queensberry, (born 14 February 1954), styled as Lord Eskdaill until 1973 and as Earl of Dalkeith from 1973 until 2007, is a Scottish landholder and peer.
Relevant evidence: Yes