Alan III of Nantes
Died 990 · Historical Figures · Died 990
Alan was the only known son of Guerech, Duke of Brittany, and Aremberg. With his mother he founded the castle of Ancenis around 987, according to the Chronicle of Nantes. In 988, he succeeded his father as Count of Nantes and perhaps nominal Duke of Brittany, after his father was murdered by Count Conan I of Rennes.
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The following two years were marked by endless warfare between Rennes and Nantes. In 990, Alan died, either of an illness or else killed by Conan, who took Nantes and had himself proclaimed Duke of Brittany by the bishop of Nantes, Orscand de Vannes.