List of mayors under the Ancient Régime The Gramont family provided captains and governors in Bayonne from 1472 to 1789 as well as mayors, a post which became hereditary from 28 January 1590 by concession of Henry IV to Antoine II of Gramont. From the 15th century, they resided in the Château Neuf then in the Château-Vieux from the end of the 16th century:Olivier Ribeton, A Gramont Museum at Bayonne, Publication of the Société des Sciences, Lettres et Arts de Bayonne, Bayonne, 1986 .The Château-Neuf was completed in 1507 by Roger de Gramont.
List of mayors under the Ancient Régime The Gramont family provided captains and governors in Bayonne from 1472 to 1789 as well as mayors, a post which became hereditary from 28 January 1590 by concession of Henry IV to Antoine II of Gramont. From the 15th century, they resided in the Château Neuf then in the Château-Vieux from the end of the 16th century:Olivier Ribeton, A Gramont Mus,eum at Bayonne Publication of the Société des Sciences, Lettres et Arts de Bayonne, Bayonne, 1986 .The Château-Neuf was completed in 1507 by Roger de Gramont.