World Prisons
All prisons

France

Fortress of Miolans

Low
Verified 29 May 2026
Fresh · 1d ago

Data is aggregated from public sources and may be incomplete or out of date. Always verify with primary sources before acting on any figure. See data sources.

For families

How to send mail, money, and visit Fortress of Miolans

Step-by-step guidance using the France system — addresses, money services, visit booking, what to bring on your first visit.

Open toolkit
Photograph of Fortress of Miolans

Gallery

From Wikimedia Commons (CC-BY-SA where not otherwise stated).

  • 001. Château de Miolans.JPG

    Photo by Otourly via Wikimedia Commons (CC BY-SA 3.0)

  • 002. Château de Miolans.JPG

    Photo by Otourly via Wikimedia Commons (CC BY-SA 3.0)

  • 003. Château de Miolans.JPG

    Photo by Otourly via Wikimedia Commons (CC BY-SA 3.0)

  • 004. Château de Miolans.JPG

    Photo by Otourly via Wikimedia Commons (CC BY-SA 3.0)

  • 005. Château de Miolans.JPG

    Photo by Otourly via Wikimedia Commons (CC BY-SA 3.0)

  • 006. Château de Miolans.JPG

    Photo by Otourly via Wikimedia Commons (CC BY-SA 3.0)

  • 007. Château de Miolans.JPG

    Photo by Otourly via Wikimedia Commons (CC BY-SA 3.0)

  • 008. Château de Miolans.JPG

    Photo by Otourly via Wikimedia Commons (CC BY-SA 3.0)

Background

The Fortress of Miolans (French: Château de Miolans) is a former fortress prison located in a remote area of Savoy in France. The site, which has been occupied since the fourth century AD, strategically controlled the route across the junction of the Isere and Arc rivers. The fortress was converted into a prison by the Counts of Savoy in the mid-16th century. Its notoriety led it to be compared to the Bastille in Paris.

Source: Wikipedia article lead, CC-BY-SA.

Capacity

Current population

Occupancy

Year opened

1083

Operational

Facility profile

Operator

Population held

Mixed/unknown

Opened

1083

Region

Security level

Death-row facility

No

Conditions

No conditions summary available yet.

Visiting

No visiting information available.

Mailing

No mailing information available.

Practical info

Contact the operator's website for inmate-specific procedures.

Known issues

No major issues documented in our database.

Contact & address

Conditions Risk Score

Derived signal — not a judgement. How it's calculated

Insufficient data
We don't have enough public data on this facility to score it. Have something to add? Send us a correction.

Data completeness

20%

How many of our profile fields are populated. We surface this so families and researchers know the limits.

Sources