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Palais de l'Isle

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Palais de l'Isle, Medieval fortress on Thiou River in Annecy, France

Description

The Palais de l'Isle is a triangular stone fortress built on a small island in the Thiou River in Annecy. Its thick walls and towers rise directly from the water, creating the striking impression of a ship anchored between two channels.

History

The fortress was built in the 12th century as a residence for the Counts of Geneva and later transformed into an administrative and judicial center. Over the following centuries, it served many purposes including a courthouse, a mint, and a prison.

Culture

The building was the heart of local governance and justice for centuries, where decisions that affected the entire region were made. Walking through its rooms, you can sense how important it was to the community and how people depended on what happened within these walls.

Practical

The building is open most days of the week and visitors can explore the different rooms including old cells, a chapel, and courtrooms inside. It is easy to locate since it stands alone on the island in the middle of the old town and is visible from all directions.

Did you know?

The exterior of the fortress appears solid and imposing, yet many visitors are surprised to discover that the interior spaces are organized in unexpected ways that maximize the limited island area. The clever layout reveals how medieval builders adapted to working within tight physical constraints.

Location
Location
old city of Annecy
Address
3, passage de l'Île
Opening Hours
Monday 14:00-17:00; Wednesday-Sunday 14:00-17:00
Phone
GPS coordinates
45.89858,6.12683
Latest update
December 6, 2025 16:03

AroundUs brings together thousands of curated places, local tips, and hidden gems, enriched daily by 60,000 contributors worldwide. Discover all places nearby (Annecy).

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« Palais de l'Isle - Medieval fortress on Thiou River in Annecy, France » is provided by Around Us (aroundus.com). Images and texts are derived from Wikimedia project under a Creative Commons license. You are allowed to copy, distribute, and modify copies of this page, under the conditions set by the license, as long as this note is clearly visible.

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