Son of Marie de Coucy, queen of Scots (d.1284) (Familial relationship)
- Alexander III, king of Scots (d.1286)
- From Source
3/165/8 (Newb. Reg., no. 211)
- Firm date
- 4 September 1241 X 8 July 1249
- Dating Notes
- Birth of Alexander III × death of Alexander II (see pro anima clause).