HeadingTroschel, Jakob used in: Integrated Authority File (GND), Germany
Sources
Found inThieme-Becker,XXXIII,430
Image [Peter Troschel / "Sprawozdania Komisyi do Badania Historyi Sztuki w Polace". Vol. 6, 1900 -- Public domain -- http://commons.wikimedia.org/wiki/File:Jakob Troschel.jpg]