Son of William Douglas (TRW) (Familial relationship)
- Archibald Douglas (early 13C)
- From Source
3/16/18 (Mort. Reg., App. I, no. 1)
- Firm date
- 1204 X 19 April 1225
- Dating Notes
- Death of Earl Duncan II of Fife × royal confirmation (<em>Morton Reg.</em>, i, App I, no. 2).