William Douglas, 1st Earl of Douglas was a Scottish nobleman, peer, magnate, and head of the Black Douglas family. Under his leadership, the Black Douglases continued their climb to pre-eminence in Scottish politics begun under his uncle, Sir James the Good, as well as their military dominance of the south of Scotland.
- Occupation
- military personnel
- Position held
- Member of the Parliament of Scotland, Warden of the Scottish Eastern March
- Citizenship
- Kingdom of Scotland
- Born
- 1330, 1327