Werner Dahl
Born in the 1830s, Werner Dahl was a German art collector. His collection was sold at auction after his death in 1905 by Frederik Muller in Amsterdam.
In 1901, Dahl sold Portrait du Pasteur Adrianus Tegularius by Frans Hals (Schloss German no. 82/ French no. 97) to Adolphe Schloss. He died in 1905 in Düsseldorf.