In Munich he was influenced by Theodor Fischer, an architect whose own work fell between neo-classical and Jugendstil, and who had been teaching there since 1907; Mendelsohn also made contact with members of Der Blaue Reiter and Die Brücke, two groups of expressionist artists.
En Múnic recibiu a influencia de Theodor Fischer, arquitecto cunha obra que se move entre o neoclasicismo e o Jugendstil, e que lle deu clases dende 1907; Mendelsohn tamén tivo contacto con membros de dous grupos de artistas expresionistas, Der Blaue Reiter e Die Brücke.