A marshal of this region was told, "Drink thy bloo
A marshal of this region was told, "Drink thy blood, Beaumanoir; thy thirst will pass!" during a fight at the Halfway Oak where Robert Bemborough was killed. That Combat of the Thirty was fought in a war over this region, where the Marquis de Pontcallec organized an anti-tax conspiracy against regent Philippe d'Orleans. The papier timbre tax sparked a revolt in this region in 1675 in which protesters wore red Phrygian caps. This site of the Revolt of the Bonnets Rouges was also the site of the Battle of Auray, the decisive battle in a war of (*) succession over this region that was won by John de Montfort over Charles of Blois. This region was united with France through the marriage of Charles VIII with Anne, a daughter of this region's last independent duke, Francis II. The historical capital of this region names a document that granted rights to Huguenots before it was repealed by the Edict of Fontainebleau. For 10 points, name this French region to the west of Normandy that contains Nantes. 
A marshal of this region was told, "Drink thy blood, Beaumanoir; thy thirst will pass!"
Brittany