Which artist's career began with copying Bosch?

The artist whose career began with copying Hieronymus Bosch is Pieter Bruegel the Elder. Influenced by Bosch's intricate and fantastical imagery, Bruegel developed his unique style that combined social commentary and vivid landscapes. His early works reflect Bosch's themes, but he eventually evolved into a master of his own, known for his detailed scenes of peasant life and moralistic narratives. Bruegel's innovation helped pave the way for subsequent generations of artists.