Spanish holiday guide
Day of the Institutions of Cantabria
The Day of the Institutions of Cantabria on 28 July recalls the 1778 assembly at Puente San Miguel that shaped Cantabrian self-organisation.
What it means
It is Cantabria’s institutional holiday, celebrating historical self-government and modern autonomy.
Origin and history
On 28 July 1778 the Casa de Juntas at Puente San Miguel approved ordinances uniting the Nine Valleys as Cantabria; the autonomous community observes that anniversary.
How it is observed in Spain
Official acts at Puente San Miguel with cultural programming; regional public holiday.
Interesting facts
- Fixed venue: Puente San Miguel (Reocín).
- Marks the 1778 provincial ordinances of the Nine Valleys.
- Separate from the 15 September patroness feast.
Public calendar
Check the 2026 dates
Holiday status depends on place. See the official calendar pages for the locations covered by this guide.