This keep is the last surviving vestige of an ancient castle in Essonne: here is its story!

Published by Rizhlaine de Sortiraparis · Updated on June 25, 2026 at 04:18 p.m.
À Sainte-Geneviève-des-Bois, a mysterious circular tower still rises over a domain steeped in history. It is all that remains of the vanished château of Sainte-Geneviève-des-Bois: among lords, grandiose projects and local legends, a look back at the little-known history of one of the most remarkable monuments in Essonne.

Set in the heart of a tranquil estate, the Donjon stands today as one of the most intriguing witnesses to the local heritage. In former times, an ancient castle stood here, almost entirely vanished. Of this lordly residence, only a lone relic remains, now one of the city's most recognizable historical landmarks. It once formed part of a much larger complex: a castle, its outbuildings, gardens and other structures tied to the life of the estate.

Despite its name, the Donjon de Sainte-Geneviève-des-Bois may not have been a true keep in the strict sense. The term today mainly denotes the large round tower, the last major visible remnant of an old feudal estate. Its exact origin remains debated: some traditions link it to the Middle Ages, while other interpretations point to a construction or late transformation.

Around this tower formerly rose the Château de Sainte-Geneviève-des-Bois. Over the centuries, the estate would undergo several transformations, shaped by owners, architectural fashions and family ambitions. Thus the château formed a substantial complex, with outbuildings, courtyards and facilities that gave the site a true seigneurial air. But the upheavals of history, notably around the Révolution française, eventually wiped out most of the building. The keep, however, remained.

The preserved buildings around the tower still let us imagine the former estate, with traces of aristocratic life and the successive transformations of a place that has had to adapt through the centuries.

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6 Rue de la Tour
91700 Sainte Genevieve des Bois

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