| Role | Name | Name (original language) | Name (translation) | Floruits |
|---|---|---|---|---|
| Addressor | Innocent IV, pope (d.1254) | INNOCENTIUS | Innocent, bishop, servant of servants of God | 1226 × 1254 |
| Addressee | John de Frusinon, master, papal chaplain | Johanni de Frusinon | Master John de Frusinon, our chaplain in Scotland | 1254 × 1254 |