The château was built on the site of a medieval fortress surrounded by a moat, owned by the lords of Trémilly. At the start of the Wars of Religion, around 1540, Trémilly castle served as a refuge for the "Reformed" and was twice besieged by supporters of the League, before finally being destroyed.
The château has had 28 owners, including, around 1540, Jacques Ménisson, a fervent protector of Protestants and a Protestant himself.
The current château was rebuilt in 1719 to designs by Jean-Baptiste Bouchardon, architect and renovator of numerous churches in Haute-Marne, and father of the famous sculptor Edmé Bouchardon.
Its main façade is around forty metres long, with a central section seven bays wide and two lateral forebays.
CHATEAU DE TREMILLY