Arrondissement of Châteaubriant
The Arrondissement Châteaubriant was until 31 December 2016 administrative unit in the French department of Loire-Atlantique within the Region Pays de la Loire km² least 129,284 inhabitants (at January 1, 2014) and an area of the 2148th The administrative seat ( sub-prefecture ) was Châteaubriant . In the Arrondissement there were ten constituencies ( cantons ) and 53 municipalities.
The new Arrondissement Châteaubriant-Ancenis was formed through the merger on January 1, 2017 with the Arrondissement Ancenis .