Later the tradition was reinforced by a miracle recorded in the 10th century, when the walled town of Guérande, near the mouth of the Loire, prayed to St. Albinus for help and found their attackers miraculously defeated.
The second Treaty of Guérande (1381) established Brittany's neutrality in the Anglo-French conflict, although John continued to make homage to King of France.
He owned vast landed estates and salt works (as at Guérande) in southeastern Brittany and was a patron of Redon Abbey.
The nearby region has long been an area of contact and conflict between Breton culture and that of the neighbouring Loire valley, and consequently is rich with historic places, castles (Nantes castle), walled cities (Guerande), not to mention 19th century seaside resorts, such as Quiberon, and many typical Breton fishing villages (Pornichet).
The veuze is a Breton bagpipe found traditionally in southeastern Brittany and in the northern part of the Vendée, particularly around Nantes, the Guérande peninsula, and Basse-Vilaine.