Question:  Sheila Mullen is a Scottish painter whose works are in the permanents collection of the senior patrilineal descendant of who?
Facts:
Sheila Mullen is a Scottish painter
Sheila Mullen (artist) done works which are in the permanent collections of the Duke of Buccleuch
Richard Scott, 10th Duke of Buccleuch is the senior patrilineal descendant James, Duke of Monmouth
Answer: James, Duke of Monmouth