| 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, precentor of Messina, papal chaplain | 1261 × 1262 | |
| named person (transaction) | John of Cheam, bishop of Glasgow (d.1268) | bishop of Glasgow | 1252 × 1268 | |
| named person (transaction) | Alexander IV, pope (d.1261) | Pope Alexander | 1255 × 1261 |