A Master of Dutch Portraiture: The Life and Art of Johan Heinrich Neuman Johan Heinrich Neuman, born in Cologne in 1819 and passing away in 1898, was a prominent figure in the landscape of 19th-century Dutch painting. While perhaps not as widely celebrated today as some of his contemporaries, Neuman’s meticulous portraits offer a fascinating glimpse into the social and political currents of his time, revealing a skilled artist deeply…