| Name | Floruits | Related place |
|---|---|---|
| Gilbert or Gilla Brigte, earl of Caithness and Orkney (d. 1256) | earldom of Caithness and Orkney | |
| Harald Maddadson, earl of Orkney and Caithness (d.1206) | 1151 × 1196 | earldom of Caithness and Orkney |
| Magnus (III), earl of Caithness and Orkney (d.1273) | 1239 × 1239 | earldom of Caithness and Orkney |
| Magnus (IV), earl of Caithness and Orkney (d.1284) | 1284 × 1284 | earldom of Caithness and Orkney |
| Magnus (V), earl of Caithness and Orkney (d.1321) | 1312 × 1312 | earldom of Caithness and Orkney |