Hoel II- Count of Nantes, Count of Rennes, and eventually Duke of Brittany
1082–1084 Hoel I (in opposition to Geoffrey II from 1066), also Duke from 1066
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Francis I (in Breton Fransez I, in French François I) (Vannes/Gwened, 14 May 1414 – 18 July 1450, Château de l'Hermine/Kastell an Erminig), was Duke of Brittany, Count of Montfort and titular Earl of Richmond, from 1442 to his death.
Anne of Brittany was the last independent ruler of Brittany, inheriting the Duchy as a girl of twelve in 1488, and securing her inheritance was a crucial matter for both the House of Habsburg and the French Crown.
He sold all he possessed to the English, and his fief of Fougères to the Duke of Brittany.
Peter II (in Breton Pêr II, in French Pierre II) (1418–1457, Nantes/ Naoned), was Duke of Brittany, Count of Montfort and titular earl of Richmond, from 1450 to his death.
1074- It is possible that Ralph defended Dol when the Conqueror besieged it unsuccessfully in 1074, although it is more likely that Ralph was in Dol during the revolts against Hoel II, Duke of Brittany and that William came to Dol in defense of Hoel.
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In 1076, having plotted against Hoel II, Duke of Brittany, he was besieged at Dol, and the Conqueror came to Hoel's aid; but Ralph finally made his peace.