| Role | Name | Name (original language) | Name (translation) | Floruits |
|---|---|---|---|---|
| Addressor | Martin IV, pope (d.1285) | Martinus | Pope Martin, our predecessor | 1281 × 1284 |
| Addressee | Bagamund de Vica, master, papal nuncio | Baiamunmundum [sic] | Master Baiamond, canon of Asti, collector of the said teinds |