Gaston Ritter von Mallmann
Ritter von Mallmann Gaston, born in Vienna in 1860, converted his extensive private collection of Old Masters into the “Gallerie Mallmann” in 1907. The gallery was located in Berlin. In 1918, the gallery was auctioned off. (Rudolph Lepke’s Kunst-Auctions-Haus. “Galerie Ritter Gaston von Mallmann, Berlin (Band 1): Gemälde alter Meister aller Schulen: Versteigerung: 12. Juni 1918 (Katalog Nr. 1808) — Berlin, 1918. https://digi.ub.uni-heidelberg.de/diglit/lepke1918_06_12bd1/0009. Accessed 1 June 2021.)