James Douglas, 3rd Earl of Angus, Lord of Liddesdale and Jedburgh Forest (1426–1446) was a Scottish nobleman.
It has been suggested that the feud between the Black and Red Lines of the House of Douglas was encouraged by Bishop Kennedy of St. Andrews as a method of curtailing the power of unruly magnates, and ensuring continued Stewart reign.
[1] Kennedy was a first cousin through Angus' grandmother, Princess Mary of Scotland, a daughter of King Robert III.
During his forfeiture, Angus was surprised at the reluctance of his tenantry to pay their Feus, he made a point of collecting them punctually in person.
He was betrothed briefly to Princess Joan, third daughter of King James I, she was twelve years old when he died and was with her sister the Dauphine of France.