| Role | Name | Name (original language) | Name (translation) | Floruits |
|---|---|---|---|---|
| Addressor | Boniface VIII, pope (d.1303) | 1295 × 1302 | ||
| Addressee | Clergy and people of Caithness | populo civitatis et diocesis Cathanensis | people of the city and diocese of Caithness | 1282 × 1296 |