Gustav Krojanker, Ungar's best friend, 1922. He met Krojanker, a Prussian, and Ludwig Pinner at university in Berlin via the Jewish student organisation Hasmonaea, and they remained his closest friends; many letters from Ungar to Krojanker survive

Hermann Ungar (front right) in the Boskowitz Gym and Sports club "Makkabi"

Ludwig Pinner (right), one of Hermann's closest student friends from Berlin, who later emigrated to Palestine in 1921, with Kurt Tucholsky and the composer Wilhelm L Gruner, 1915. Pinner, Krojanker and Ungar would often meet in Prague, after Hermann returned from Berlin

Gustav Krojanker in 1930. Came from a strongly Zionist family; his father was a rich shoe manufacturer (Krojanker took over the factory in Magedeburg in 1924, but left to dedicate his life to the Zionist cause in 1928/9 and emigarted to Palestine in 1932). Ungar confided his literary ambitions to Krojanker in the first hour of their friendship in Berlin

Berlin, Friedrich-Wilhelm's University, attended by Ungar in 1911-12

Munich: Ludwig Maximilian's Univeristy, attended by Ungar in 1912

Prague: Karolinum (Karl Ferdinand's Univeristy), attended by Ungar, where Ungar graduated in Law in 1918, after attending the University from Summer 1913