Claus Sluter (1340s in Haarlem – 1405 or 1406 in Dijon) was a Dutch sculptor, living in the Duchy of Burgundy from about 1380. He was the most important northern European sculptor of his age and is considered a pioneer of the "northern realism" of the Early Netherlandish painting that came into full flower with the work of Jan van Eyck and others in the next generation.
General info from Wikipedia.org