Tags: Noble.
Lambert I (died 836) was the Count of Nantes and Prefect of the Breton March between 818 to 831 and Duke of Spoleto between 834 and 836. Lambert succeeded his father Guy.Lambert participated in an expedition undertaken by Louis the Pious in 818 against the Bretons who had proclaimed Morvan Lez-Breizh their king. In 822 a new Breton chief Wiomarc’h rebelled but submitted in May 825 at Aachen.