Synod of Aachen
Synod of Aachen or Council of Aachen referred
- Council of Aachen (809) (also: Synod of Aachen), an assembly of Franconian theologians convened by Charlemagne in November 809
- Synods of Aachen (816–819) , in which between 816 and 819 groundbreaking regulations for monastic life in the Frankish Empire were made