Adalbard was a prominent Frankish nobleman serving at the court of King Clovis II during the 7th century. A descendant of the military leader Richomer, he held significant influence and claimed lordship over Douai. He was a devoted follower of Amand of Maastricht and established the Marchiennes Abbey in 630. Following a controversial marriage to Rictrude of Marchiennes, which united two families despite social opposition, he lived as a benefactor to the poor before his life was ended by assassination in 652.