A symbol of the site's military function, the keep is the tallest fortified building in a castle. Serving as an observation post and ultimate refuge, it could also be the lord's residence.
The primitive dungeon of the 13the century in which visitors are welcomed today, is a 12m high construction which was originally lit only by narrow openings called day slits.

Francis REYThis structure, 1,5 meters thick, stretches for 160 meters. The wall-walk connects the upper part of the keep to the curtain wall, which closes in on the chapel visible below. Today, only the section running from east to south is accessible.
From the ramparts, soldiers could monitor both the interior and exterior of the building. One of their important missions was to raise the alarm in the event of a fire. At the end of the 18th century, the ramparts were raised when Montélimar Castle was converted into a prison.
This tower was built a few decades after the main house in the 13th century. This building provided important amenities: a kitchen, above which a lord's bedroom and latrines.
An internal communication access exists on each floor of both buildings. External access was via the door on the ground floor South or by stairs or wooden ladders for the upper levels.

Julien LoicThe lower courtyard, or bailey, is the area enclosed by the castle walls and occupied by the peasants working at the castle. It is distinct from the upper courtyard, reserved for the lord and his court. It served as a refuge for the local population and their livestock, whom the lord was obligated to protect.
It includes outbuildings: dwellings, stables, forges and other workshops. No trace of these buildings, often constructed of wood, has been found.
Today, recent constructions are breathing new life into the area.
The term "simples" refers to the simple herbs or plants used since antiquity for their medicinal properties. Described as such in contrast to complex potions, their long history is closely linked to that of monks and their practice of medicine.
Aromatic and culinary plants, most of which also have therapeutic properties, are associated with it. Vegetable gardens, ornamental gardens for religious services, dye plant gardens, and orchards are often found nearby.


Built in the 11the dating from the 19th century and open to the city by direct access, the Saint-Pierre chapel is the oldest building established on the top of the "little hill".
The church measures nearly 22m long by about 8m wide on average with a height of about 10m.
The lord's residence was a highly versatile space in which the lord lived. It was a "medieval palace," an ostentatious building signifying the power and authority of the masters of the manor. The architectural qualities of its west façade and the absence of defensive features are noteworthy. This palace, open to the town, existed before the construction of the rampart in the 13th century.e century – is unique in the Rhône Valley. It comprises three levels, originally separated by floors.
The church measures nearly 22m long by about 8m wide on average with a height of about 10m.
Product air Widely open to the outside, the loggia is pierced by five identical bays.
The ostentatious function of this room takes precedence, while also offering a panoramic view of the city and its surroundings.
Blaise Adilon