Château de Breteuil is built on a promontory overlooking the Chevreuse Valley. For most of its existence, the castle has been known as Bévilliers -from latin bis villae (two villas)- which implies that this property would date back to the gallo-roman period.
The first estate appears in History as early as 1066 with Guillaume Osbern, the first Breteuil, who was Seneschal to the Duke of Normandy. Guillaume Osbern took part in the conquest of England by William the Conqueror, who saw him as his most faithful companion. In the summer of 1067 the King returned to Normandy, leaving the Lord of Breteuil and his brother in charge of England in his absence.
At the time, a fortified castle was built in Bévilliers; its dovecote and moats still remain today. In 1596, Thibaut Desportes bought the estate still called Bévilliers. Bordered by medieval square moats, a new castle was laid out around an enclosed courtyard, A pleasure garden was carefully thought out, situated at the foot of the north facade, so that the sun never glares into the eyes of the person contemplating it.
The curtain walls were removed and moat dried in 1820-1830. The major restoration took place in the end of the 19th century: two wings were added and the gardens were extended.
References:The Jan Hus Memorial stands at one end of Old Town Square. The huge monument depicts victorious Hussite warriors and Protestants who were forced into exile 200 years after Hus, and a young mother who symbolises national rebirth. The monument was so large that the sculptor designed and built his own villa and studio where the work could be carried out. It was unveiled in 1915 to commemorate the 500th anniversary of Jan Hus' martyrdom. The memorial was designed by Ladislav Šaloun and paid for solely by public donations.
Born in 1369, Hus became an influential religious thinker, philosopher, and reformer in Prague. He was a key predecessor to the Protestant movement of the sixteenth century. In his works he criticized religious moral decay of the Catholic Church. Accordingly, the Czech patriot Hus believed that mass should be given in the vernacular, or local language, rather than in Latin. He was inspired by the teachings of John Wycliffe.