| Role | Name | Name (original language) | Name (translation) | Floruits |
|---|---|---|---|---|
| Addressor | Hugh de Mortimer, dean of Glasgow (d.1235/6) | Decani | Dean | 1210 × 1239 |
| Addressor | Chapter of Glasgow | et capituli Glasg' | and chapter of Glasgow | 1161 × 1321 |
| Addressee | Honorius III, pope (d.1227) | 1216 × 1227 |