Question: Who is the paternal grandfather of James Douglas, 1St Lord Mordington?
Sentence (from "James Douglas, 1st Lord Mordington"): Sir James Douglas, 1st Lord Mordington (died 11 February 1656) was the second son of William Douglas, 10th Earl of Angus by his spouse Elizabeth, daughter of Laurence Oliphant, 4th Lord Oliphant.
Relevant evidence: Yes