| Tescelin le Roux - Lord of Fontaines and knight | Builder of the castle, father of Bernard de Clairvaux. |
| Bernard de Clairvaux - Saint and founder of Clairvaux | Born in the castle in 1090, major figure of monasticism. |
| Sainte Alèthe de Montbard - Wife of Tescelin le Roux | Mother of Bernard, founder of the chapel in 1102. |
| Louis XIII - King of France (1610–1643) | Protects the Royal Monastery of the Feuillants. |
| Abbé Christian de Bretenières - Restorer of the site (late 19th) | Give the castle its present appearance. |
| Chanoine Renault - Master of the ruins (1840) | Makes the site a Christian worship. |