| Role | Name | Name (original language) | Name (translation) | Floruits |
|---|---|---|---|---|
| Addressor | Urban IV, pope (d.1264) | Pope Urban IV | 1261 × 1264 | |
| Addressee | Leonard, master, precentor of Messina, papal chaplain | Master Leonard | 1261 × 1262 | |
| named person (transaction) | Chapter of Whithorn | prior and chapter of Whithorn | 1209 × 1287 | |
| named person (transaction) | Ivo, Friar Preacher of Ayr | Ivo, Friar Preacher of Ayr |