Lambert Ι (died after 650), was a Neustrian nobleman who was son of Robert I, Bishop of Tours.
Lambert is identified as a noblilis in Neustria, son of Chrodbert I and father of Chrodbert II in Europäische Stammtafeln, and as such, is a direct ancestor of the Robertians.
Brother to Angadrisma, he is sometimes confused with their cousin and her mentor Lambert.
They had the following children: It is possible that Theodard was Robert's brother-in-law rather than his brother.
Because of his family, Lambert probably held a position in the royal court, but the precise nature of this is unknown.