Wikipedia 3 July 2020: (Allard Pierson (8 April 1831 – 27 May 1896) was a Dutch theologian, historian, and art historian. He was a leading proponent of radical criticism in the Netherlands. He was born in Amsterdam, studied in Utrecht and worked as a pastor in Louvain and Rotterdam. He moved to Heidelberg, then from 1877 to 1895 Pierson was professor in history of art, aesthetics and modern languages at the University of Amsterdam.) https://en.wikipedia.org/wiki/Allard_Pierson