| Role | Name | Name (original language) | Name (translation) | Floruits |
|---|---|---|---|---|
| Addressor | Clement III, pope (d.1191) | Clemens | Clement, bishop, servant of servants of God | 1188 × 1190 |
| Addressee | William I, king of Scots (d.1214) | Willelmo | William, king of Scots | 1145 × 1213 |