| Role | Name | Name (original language) | Name (translation) | Floruits |
|---|---|---|---|---|
| Addressor | Boniface VIII, pope (d.1303) | 1295 × 1302 | ||
| Addressee | Unknown, dean of Caithness | Decano | Dean [of Caithness] | 1296 × 1296 |
| Addressee | Chapter of Caithness | Capitulo ecclesie Cathanensis | Chapter of church of Caithness | 1222 × 1296 |