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:House of the Blackheads (Melngalvju nams) is a building situated in the old town of Riga. The original building was erected during the first third of the 14th century for the Brotherhood of Blackheads, a guild for unmarried German merchants in Riga. Major works were done in the years 1580 and 1886, adding most of the ornaments.
The structure was bombed to a ruin by the Germans June 28, 1941 and the remains demolished by the Soviets in 1948. The current reconstruction was erected from 1995 to 1999. Today the House of Blackheads serves as a museum and sometimes concert hall.