How many movies have Clementine Plessner and Richard Oswald collaborated on?

They have worked on 6 movies together! Their first movie together was Jettchen Geberts Geschichte. 1. Jettchen Gebert (1918) while their highest rated movie together was Different from the Others (1919). They have not worked together since Lucrezia Borgia (1922). They are most known for their drama films together.