| Claude d'Angennes - Bishop of Le Mans | Founded the seminar in 1601. |
| Michel Aubourg - First Principal of the College | Curé and Doctor of Theology, appointed in 1601. |
| Henri IV - King of France | Validated the establishment of the college in 1601. |
| Charles de Beaumanoir - Bishop of Le Mans | Confederate the Oratorians in 1624. |
| Jean-Baptiste Gault - Superior of Oratorians | Directed the college (1625-1640), future bishop. |