Johann Hulsman, or Hans Holsman (1610 – 1652), was a German Baroque painter active in Cologne.
[1] Houbraken's source was Cornelis de Bie's work on painters called Het Gulden Cabinet.
[3] According to the RKD he worked together with Johann Toussyn on a church altarpiece in Cologne.
[4] He was influenced by Dirk and Frans Hals, and Jurgen Ovens.
[4] He was the teacher of Johann Franz Ermels, and was active in Cologne during the years 1632-1646.