Feudal exchange 17 février 1327 (≈ 1327)
Amblard de Briord gives land to the dolphin Guigues VIII
XIIIe siècle
Initial construction
Initial construction XIIIe siècle (≈ 1350)
Construction period according to Monumentum
1978
Partial protection
Partial protection 1978 (≈ 1978)
Registration of facades and roofs
Aujourd'hui
Aujourd'hui
Aujourd'hui Aujourd'hui (≈ 2025)
Position de référence.
Heritage classified
Facades and roofs (Case B 145): inscription by order of 30 May 1978
Key figures
Amblard de Briord - Knight and first lord of the Serra
Dived land to the dolphin in 1327
Guigues VIII - Dolphin of Vienna
Land exchange with Amblard de Briord
Claude de Briord - Lord of the Serra and Cras
Gather all the shares of the seigneury
Origin and history
The castle of the Serraz, built in the 13th century according to Monumentum sources, is an ancient castle located in the commune of Seillonnaz in the department of Ain. Originally a simple noble house without justice, it became the center of the lordship of the Serra after an exchange in 1327 between Amblard de Briord and the dolphin Guigues VIII. The latter gave to Amblard the parish of Seillonnaz with his rights of justice, in exchange for land located at Saint-André de Briord.
The seigneury of the Serra partially changed hands before being reunited by Claude de Briord in the 15th century. The castle, partially protected since 1978 (facades and roofs), bears witness to local feudal rivalries and alliances between noble families. Its architecture reflects its defensive and seigneurial role in the region.
The monument, inscribed in the Historical Monuments, preserves characteristic elements of medieval castles. Its location on a hillside reinforces its strategic importance. The sources also mention links with the lords of Montdragon and the Balme d'Andert, although the details of these possessions remain partial.
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