The whole fief counted about 100 ha for Maizeret and about 160 ha for Moinil. The Moinil lot consisted in 1314, of a "tower" and a house, which would become the nucleus of the future castle. The "sub-fief" of Moinil frequently changed owners: in 1645 the seigniory and its castle are sold for 22,000 guilders, to be sold again in 1677 for 2,440 guilders, the castle and the buildings being in ruins. The fief became the property of Vincent de la Boverie, mayeur of the ferrons and master of the forges who rebuilt it and transformed it into a real "pleasure home". The de Baré family obtained the lands of Maizeret and Moisnil in 1753. The last lord of Maizeret in the Ancien Régime was Baron Jacques de Baré de Moisnil, lord of Houchenée.
20th century
In 1902, the extensions made by Jules van Dievoet after the plans of architect Octave Flanneau were made. In June 1922, the « Les Journaux Réunis de Lille à Roubaix » company bought the château including its grounds of 35 hectares from Marguerite Anspach, widow of Jules van Dievoet. As a result of this purchase, Mrs Duhamel, owner of this press company, occupied the property for nearly 17 years. Later, Marguerite de la Barre d'Erquelinnes, wife of Count Antoine d'Ursel, acquired the land of Moisnil on 21 March 1939. The family built a new porch in 1960. It was also around this time that the operations of the adjoining farm ceased. Since 1988, the Château has been inhabited by their son, Count Didier d'Ursel.
WWII
Shortly before the war, the castle was requisitioned to house the garrison of Fort Maizeret. Beginning from the general mobilization of September 1938, it served as cantonment to the soldiers in charge of the defense of the valley of the Meuse. On May 12, 1940, the castle was bombed by surprise by the Luftwaffe, at the same time as the city of Namur. The oldest parts of the old Château were destroyed, and today only the cellars remain, hidden under a layer of gravel.
Anecdote
It is said that the old château had been inhabited in the 17th century by Henri de La Fontaine who happened to be related to Jean de La Fontaine, the famous fabulist. It is said that Jean de La Fontaine, who followed Louis XIV as a historiographer during the siege of Namur, stayed there in 1692 with this distant cousin and composed ":fr:Les Animaux malades de la peste|Les Animaux malades de la peste" there. The stone bench from which he could admire the beauty of the Mosan landscape is still there.
