Son of Simon, son of Simon of Orrock (Familial relationship)
- Robert, son of Simon of Orrock
- From Source
3/454/1 (Dunf. Reg., no. 204)
- Firm date
- 1265 X 1275
- Dating Notes
- Richard of Balwearie and Duncan of Crambeth witness <em>Dunf. Reg.</em>, no.319, dated 1272. Dated provided from Taylor, <em>PNF</em>, i, 200.