Johann Hulsman, or Hans Holsman (1610 – 1652), was a German Baroque painter active in Cologne.
Biography According to Houbraken he was a painter from Cologne who painted for royalty, and Houbraken did not know more about him or his date of birth/death. Johann Hulsman Biography in De groote schouburgh der Nederlantsche konstschilders en schilderessen (1718) by Arnold Houbraken, courtesy of the Digital library for Dutch literature Houbraken's source was Cornelis de Bie's work on painters called Het Gulden Cabinet. Hans Holsman in Cornelis de Bie's Het Gulden Cabinet, 1662, courtesy of Google books Joachim Sandrart also mentioned him in his book of painters.Johann Hulsman in the Teutsche Academie by Joachim Sandrart, 1680.
According to the RKD he worked together with Johann Toussyn on a church altarpiece in Cologne. in the RKD He was influenced by Dirk and Frans Hals, and Jurgen Ovens. He was the teacher of Johann Franz Ermels, and was active in Cologne during the years 1632–1646.
References
Johann Hulsman on Artnet