Jussy was a vassal town of the Bishop of Geneva in the Middle Ages and the chateau was built on the grounds owned by the Bishop circa 1220. Several families such as de Compesières, and the de Rovorée clans took turns in looking after the castle as well as its domains for the Bishop who had the legal jurisdiction it.
With the advent of Reformation, the castle found itself in the middle of the intrigues between the city fathers of Geneva who dislodged the Bishop as the lord of the city state in 1536 and the Duke of Savoy. The Lord occupant of the castle, Michel de Blonay refused to abandon his Catholic faith and side with Calvinism. Several attempts at resistance followed and finally with the defeat of the Saoy Duchy in the war of Escalade in 1598, the castle was taken by the Calvinists and destroyed in the 1590s. With the Treaty of St. Julien in 1603 that recognized Geneva as a Republic, the castle fell into ruins.
Agrippa d'Aubigné, a nobleman, a reformed French Huguenot squire of Henry IV, who was expelled from France as result of his participation in the conspiracy against Duke of Luynes acquired the rights to the ruins of the chateau. He was also war leader, historian, poet and writer. Hired to direct the work of fortification in the cantons of Geneva, Bern and Basel, d'Aubigné rebuilt the castle du Crest. because of the previous experiences with fortifications this close to Geneva, the city fathers did not want to see a fortified structure and hence permitted only the right to build "a manor house to safeguard against thieves and murderers."
However, Agrippa d'Aubigné went beyond the permission granted to him and built fortification including turrets, loopholes, drawbridge and a deep moat. He justified this to Geneva as a protection against papal armies. He died in 1630 and the castle passed into the hands of the Micheli family.
In 1637, Jacques Micheli of Lucca in Tuscany acquired the lordship and his descendants own the property to this day. The family played an important part in shaping the politics of Geneva and held several important positions. This changed with Jacques-Barthélemi Micheli du Crest (1690–1766) who was a declared enemy of the state. A bright politician and inventor of a thermometer published the "Maxims of a Republican" and was openly critical of the city fathers. He was exiled and sentenced to death in absentia. His descendants retained the rights of the castle. Since 2005, the Castle is looked after by the Foundation Micheli-du-Crest.
- Château Du Crest (French)
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