Lambert II of Nantes

Lambert II (died 852) was the Count of Nantes and Prefect of the Breton March between 843 and 851. Lambert ruled the county in opposition to Amaury, the puppet count installed by Charles the Bald, King of West Francia. At his death, the county was effectively in Breton control. Lambert was the son of Lambert I and his wife Itta.

Lambert initially served Charles the Bald, fighting with him at the Battle of Fontenay (841). He turned against Charles when his rival Renaud d'Herbauges was made Count of Nantes in place of him. Disappointed in his ambitions, Lambert II broke with Charles the Bald and turned to Nominoe, Duke of Brittany, who was then in almost open revolt against the Franks. Lambert gathered soldiers on the borders of the Anjou, intending to advance on the river Vilaine to join his forces with Nominoe.

Renaud fortified Nantes, but learning of a serious illness that had temporarily incapacitated Nominoe, he decided to strike first. Renaud invaded Breton territory at the junction of the Diocese of Alet and County of Nantes, on the Roman road of Angers-Carhaix. An army of Bretons led by Nominoe's son Prince Erispoe was crossing the Vilaine at Messac when Renaud attacked. At the Battle of Messac, Erispoe was initially defeated by Renaud. Shortly afterwards, however, the timely arrival of Lambert's troops allowed Erispoe to counter-attack in force, defeating Renaud. Renaud himself was killed the day afterwards, during the pursuit. The allies may also have been assisted by the Viking warlord Hastein, who is said to have personally killed Renaud. However, other sources assert that Lambert killed Renaud and that the Viking force arrived shortly afterwards, looking for plunder.

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