Château de Rosny-sur-Seine

The château features a U-shaped layout with a central body flanked by two wings, constructed with brick and limestone under slate roofs.

Duke of Sully initiated the construction in 1598 with funding from King Henry IV, creating a residence that replaced a medieval fortress destroyed during the Hundred Years' War.

The interior displays French Renaissance architecture with monumental fireplaces, wooden paneling, and traditional French-style ceilings throughout its grand rooms.

The castle offers guest rooms for overnight stays and hosts thematic events, workshops, and exhibitions throughout the calendar year.

The entrance portal incorporates military-themed decorative elements, including sculpted columns adorned with cannon barrels, grenades, and helmets.

Location: Rosny-sur-Seine

Architects: Jacques Androuet II du Cerceau, Joseph-Antoine Froelicher

Architectural style: Louis XIII style

GPS coordinates: 49.00333,1.63028

Latest update: June 23, 2025 09:41