| Role | Name | Name (original language) | Name (translation) | Floruits |
|---|---|---|---|---|
| Addressor | Gregory, pope (d.1276) | Gregorius | Gregory, bishop, servant of servants of God | 1272 × 1275 |
| Addressee | Alexander III, king of Scots (d.1286) | Regi Scocie | king of Scotland | 1245 × 1285 |