| Henri IV - King of France | Founded the college by letters-patentes. |
| Connétable de Montmorency - Noble Solicitor | Called for the establishment of the college. |
| Duc de Ventadour - Noble Solicitor | Supports the foundation with Henry IV. |
| Père Gontier - Jesuit architect | Designs the initial plans of the college. |
| Père Barème - Architect of the Oratory | Directed the extension of seminars (1670-1674). |