CHÂALIS
At the very beginning of the twelfth century, on his return from the First Crusade, a lord of Mello founded a priory at Calisium. In 1136 the king, Louis le Gros, wishing to honour the memory of his brother, Charles le Bon, who was assassinated in Bruges, transformed this priory into an abbey which was placed under the management of the Order of Cîteaux, whose growing power was beginning to make itself felt.
The Abbey flourished under the protection of the kings of France, the bishops of Senlis, and the lords of Chantilly, and became of great importance.
Its present condition can only give a faint idea of its former disposition and size.
The good king St. Louis often came to share the peaceful life of the monks, cultivating the soil and the vine, looking after the bees, fishing for pike in the ponds, and eating in the common refectory out of a wooden bowl, amidst the tame birds that came from all the country around to join in the meals.
At the time of the Renaissance the Abbey fell in commendam, that is to say it was no longer the property of the community but that of the abbot, who was thenceforth chosen by the king, instead of being elected by the monks. The first commendatory abbot was the Cardinal Hippolyte d'Este, son of Lucretia Borgia. Reducing the monks to a bare pittance, the Cardinal made free use of the Abbey revenues, which enabled him to build his famous Villa d'Este at Tivoli and its magnificent gardens.
In 1570, the great Italian poet Tasso spent several months at Châalis and there worked at his Jerusalem Delivered.
RUINS OF THE ABBEY CHURCH
In the eighteenth century, the reconstruction of the Abbey was undertaken. Jean Aubert, the architect of the "Grandes Écuries" at Chantilly and the Hôtel Biron in Paris, was entrusted with the plans. The work was begun but not completed. The abbatial building, which to-day contains the museum and which can be seen on the left of the beautiful avenue leading to the entrance gate, shows the dignified style that Aubert wished to apply to the new edifice.