History and visit of Château de la Verrière, from the Séguier family to MGEN, for Heritage Open Days 2026
Yvelines: Château de la Verrière opens for Heritage Open Days
Built in the 16th century for the Séguier family and later transformed into a training centre for the Mutuelle des enseignants (MGEN) in 1952, Château de la Verrière (Yvelines) offers free guided tours on 20 September 2026, by appointment only.
Editorial journal · Carte des Châteaux ·
In 1550, Pierre Séguier, future president of the Châtelet de Paris, built a château on land acquired by his father forty years earlier: the birth of Château de la Verrière in the Yvelines. Five centuries later, on Sunday 20 September 2026, four free guided tour slots will reveal this residence with its layered history, now a training centre for the Mutuelle générale de l'Éducation nationale (MGEN).
Five centuries of history
Read next
Sources