Although Edward III invaded again, he was becoming more anxious over the possible French invasion, and by late 1336, the Scots had regained control over virtually all of Scotland and by 1338 the tide had turned. While "Black Agnes", Countess-consort Dunbar and March, continued to resist the English laying siege to Dunbar Castle, hurling defiance and abuse from the walls, Scotland received some breathing space when Edward III claimed the French throne and took his army to Flanders, beginning the Hundred Years' War with France.