Question: Who is the paternal grandfather of James Douglas, 1St Lord Mordington?
Sentence (from "William Douglas, 10th Earl of Angus"): Nevertheless, Douglas succeeded to his father's titles and estates in 1591, and though in 1592 he was disgraced for his complicity in Lord Bothwell's plot, he was soon liberated and performed useful services as the King's Lieutenant in the north of Scotland.
Relevant evidence: No