Son of Thor (father of Swain) (Familial relationship)
- Swain, son of Thor of Ruthven (father of Alan)
- From Source
3/350/9 (Newb. Reg., no. 136)
- Firm date
- circa 1205 X 1221
- Dating Notes
- Death of William of Lindsey (father of David and Walter) × death of David I of Lindsey (see <em>CDS</em> i, no. 792).