This 587 accord defined Frankish succession in Burgundy and Austrasia, binding Guntram and Childebert II as allies against rebellious nobles.
Key Facts
- Year signed
- 587
- Location
- Andelot-Blancheville
- Primary parties
- King Guntram of Burgundy and Queen Brunhilda of Austrasia
- Key succession term
- Guntram to adopt Childebert II as successor
- Territorial cession
- Tours transferred from Guntram to Childebert
- Historical source
- Gregory of Tours, Historia Francorum
Location
Cause → Event → Consequence
Tensions arose within the Frankish kingdoms over broken promises, including disputes over the division of Senlis, and the threat posed by revolted leudes. Brunhilda sought to secure her son Childebert II's political position and military backing by formalizing an alliance with the powerful King Guntram of Burgundy.
At Andelot-Blancheville in 587, King Guntram of Burgundy and Queen Brunhilda of Austrasia signed the Treaty of Andelot. The pact established Childebert II as Guntram's designated successor and committed both parties to a mutual alliance against rebellious nobles. Gregory of Tours preserved the full text of the treaty in his Historia Francorum.
The treaty transferred the city of Tours from Guntram to Childebert II and consolidated Austrasian and Burgundian political interests. By formally designating Childebert as heir, it shaped Frankish dynastic succession and provided a written legal instrument that Gregory of Tours recorded as a significant event in Merovingian history.
Political Outcome
Childebert II recognized as Guntram's successor; mutual alliance against revolted leudes; Tours ceded to Childebert II
Disputed succession and broken agreements between Burgundy and Austrasia, with rebellious nobles threatening stability
Formalized alliance between Burgundy and Austrasia with Childebert II as designated Burgundian heir