Open to the general public.
Booking essential via the online diary on L'Agence's website: https://www.aud-stomer.fr/agenda/visite-guidee-la-motte-castrale-3/
The Motte Castrale is one of the founding features of Saint-Omer.
Built in the 10th century, just a stone's throw from the cathedral, it protected the collegiate church from potential attackers.
In 1761, a military prison was built here. Come and discover this perfectly preserved and restored site.
Rates
Gratuit pour tous
From €0.00
Opening times
On 24 April 2026
- 10:30 at 11:15
