Grignan Castle stands on a hill above the village of the same name. This is an excellent viewpoint of the area, especially during the flowering of lavender, which is grown in the fields around the village. The castle dates from the 11th century, but was rebuilt several times. Currently, it houses the Correspondence Museum.
Grignan was in the Middle Ages a stronghold belonging to the kings of Provence. In the 16th century it was rebuilt by the Adhémar family into a summer residence with a spacious observation deck located on the former defensive walls and a ballroom. In the 17th century, the Marquis de Sévigné lived in the castle, whose letters became one of the favorite literary works of the era. The castle was badly damaged during the French Revolution. Its reconstruction has been carried out since the beginning of the 20th century.
The castle is a polygonal building enclosed in huge defensive walls. A Gothic chapel has been preserved from the oldest building. The most visible part is the Renaissance main building with the facade restored in the classical style. The interiors were adapted at the end of the 20th century at the Correspondence Museum. Here you can admire old writing utensils, letters from old eras, seals, postage stamps. Valuable artistic fabrics hang on the walls, as well as a collection of furniture from the 18th and 19th centuries.