Son of Thor [father of Alexander] (Familial relationship)
- Alexander, son of Thor, sheriff of Clackmannan
- From Source
1/6/439 (RRS, ii, no. 473)
- Firm date
- March, 1205 X 1207
- Dating Notes
- [?] day of March; attestation of Henry, son of Earl David × resignation of Florence, bishop-elect of Glasgow.