wife of Sir James Douglas, “the Good”

Sir James Douglas, “the Good,” son of William "le Hardi" Douglas and Elizabeth Stewart. James' partners are not known (even if marriage to Agnes Randolph has sometimes been suggested).

http://en.wikipedia.org/wiki/James_Douglas,_Lord_of_Douglas

Sir James Douglas (also known as Guid Sir James and the Black Douglas), (1286 – August 25, 1330), was a Scottish soldier and knight who fought in the Scottish Wars of Independence. He was a son of Sir William Douglas the Hardy, who had been a supporter of William Wallace (the elder Douglas died in 1298, a prisoner in the Tower of London). His mother was Elizabeth Stewart, the daughter of Alexander Stewart, 4th High Steward of Scotland.

Sir James had two children by unknown mothers:

• William, Lord of Douglas killed 1333 at the Battle of Halidon HillIn 1333 succeeded by his uncle, Hugh the Dull, Lord of Douglas (c.1294-1342) In 1342 succeeded by his cousin, William Douglas, 1st Earl of Douglas, (1327-1384)
• Archibald the Grim (1325-1400), Lord of Galloway succeeded his once removed cousin as Earl of Douglas in 1388.