Lambert of Maastricht, commonly referred to as Saint Lambert, was the bishop of Maastricht-Liège (Tongeren) from about 670 until his death. Lambert denounced Pepin's liaison with his mistress or bigamous wife Alpaida, the mother of Charles Martel. The bishop was murdered during the political turmoil that developed when various families fought for influence as the Merovingian dynasty gave way to the Carolingians. His feast day is September 17.
