| Date | Short Summary | Role | Source |
|---|---|---|---|
| 22 Aug. 1259 X circa 1272 | Son of Fergus (father of Duncan) (Familial relationship) | subject (relationship) | 3/21/46 (Neville, Strathearn, nos. 59, 59a) |
| 1282 X 1289 | Son of Fergus (father of Duncan) (Familial relationship) | subject (relationship) | 3/21/53 (Neville, Strathearn, no. 72) |
| 1282 X 1289 | Brother of Duncan, son of Fergus (Familial relationship) | object (relationship) | 3/21/53 (Neville, Strathearn, no. 72) |
| 1283 X 1292 | Son of Fergus (father of Duncan) (Familial relationship) | subject (relationship) | 3/21/57 (Neville, Strathearn, no. 73) |