Erispoe, Duke of Brittany

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Erispoë was Duke of Brittany (851 - November 857). In some official documents, he is referred to as king rather than duke, but it is difficult to be sure if this was accepted by the King, Charles the Bald. His father was Nominoë.

He successfully faced Charles the Bald on the 22 August 851 at Jengland near the river Vilaine. Erispoë met Charles in Angers in the days following the battle and concluded a peace treaty in return for the recognition of Breton independence, as well as territorial concessions.

In 853 (as in 843), the town of Nantes was plundered by the Normans. Erispoë launched a war against them but it came to an end when the Normans left c.855.

He was assassinated at the altar of a church, which was then considered a place of asylum, by his cousin and successor Salomon, aided by Alcmar, the Bishop of Nantes. Erispoë married Marmohec and had at least two children, including a boy named Conan, and a girl, married to Gurvand of Rennes.