- Lambert I of Nantes
Lambert I was the
Count of Nantes andPrefect of theBreton March between 818 to 831 andDuke of Spoleto between 834 and 836. Lambert succeeded his father Guy.Lambert participated in an expedition undertaken by
Louis the Pious in 818 against theBretons , who had proclaimedMorvan Lez-Breizh their king. In 822, a new Breton chiefWiomarc'h rebelled, but submitted in May 825 atAachen . On his return to Brittany, Lambert had him assassinated.In 831, Lambert joined the rebellion of
Lothair I against Louis and was exiled across theAlps , where he was given theDuchy of Spoleto in 834. He was one of many among Lothair's entourage to die in an epidemic of 836.Lambert married firstly an unknown wife, who bore his eventual successor in Nantes, Lambert II. Subsequently, he married
Adelaide of Lombardy , the eldest daughter ofPepin of Italy , who was in turn of eldest son ofCharlemagne . Adelaide bore him another son, Guy, who succeeded in the duchy of Spoleto. Guy's sonGuy III of Spoleto was a descendant of Charlemagne through Lambert's wife, Adelaide, and was crowned Holy Roman Emperor.
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