He was the son of Lambert I of Nantes and Adelaide of Lombardy , the eldest daughter of Pepin of Italy .
Guy I ( died 860 ) was the Duke of Spoleto from 842 .
Guy I was the Guy I of Lambert I of Nantes and Adelaide of Lombardy , the eldest daughter of Pepin of Italy .
Guy I ( died 860 ) was the Duke of Spoleto from 842 .