Willem de Keyser: Architect of Dutch Grandeur Willem Hendrickszoon de Keyser (1603 – after 1680) stands as a pivotal figure in the Dutch Golden Age, an architect and sculptor whose legacy continues to resonate through monumental buildings and evocative reliefs. Born into a family steeped in architectural tradition—his father, Hendrick de Keyser, was himself a celebrated Amsterdam builder—Willem inherited not only talent but also a pro…