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Origin and history

The Bastille de Grenoble is a military fort built in the 19th century, replacing a first fortification erected at the end of the 16th century by François de Bonne de Lesdiguières, head of the Huguenots du Dauphiné. In 1592, the latter built a summary bastille to monitor Savoyard approaches, after taking Grenoble in 1590. The location, a glacial shoulder offering stunning views of the city and the valleys of Isère and Drac, makes it an ideal strategic point, difficult to attack thanks to its steep cliffs.

At the beginning of the 19th century, faced with the Savoyard threat after the Treaty of Paris (1815), Louis XVIII ordered the strengthening of fortifications. General Haxo led the work from 1824 to 1847, transforming the old bastille into a modern fort with casemates, bastions and a three-storey straight dungeon. The walls, flanked by vaulted casemates and ditches defended by half-bastions, integrate innovations such as a hollow counterweight drawbridge. The Rabot Fort, built between 1840 and 1847 below, completes the system to house up to 900 soldiers.

The site also includes battery caves dug in 1844 in the cliff of Mount Jalla, connected by underground for reverse fire. Despite its initial defensive role against Savoy, the fort will never be used in wartime, rendered obsolete by the annexation of Savoy in 1860 and the evolution of artillery. Vauban had already criticized in 1692 the delapidated state of the former fortifications, calling the Bastille "closed collichet, without art or reason".

In the 20th century, the Bastille became a major tourist site, with 600,000 annual visitors. The cable car, inaugurated in 1934, facilitates access to this exceptional view of the Alpine mountains. Barracks become restaurants, and casemates house museums, such as the mountain troops or Bastille Art Center. The National Mountain Troop Memorial, inaugurated in 2000 on Mount Jalla, pays tribute to the 150,000 soldiers who had died since 1888.

Ranked a historic monument in 1989, the ensemble also includes remains of the fortifications of Lesdiguières, visible in the laces of the road of La Tronche. The Dauphin Garden, set at the foot of the hill, and via ferrata add to the attraction of the site. The Bastille thus illustrates the evolution of military techniques, from the Renaissance to the modern era, while becoming a symbol of the Grenobles heritage, mixing history, nature and culture.

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