Robert and Bertram (play)

Robert and Bertram (German: Robert und Bertram) is a comedy play by the German writer Gustav Räder, which was first staged in 1856. It depicts the adventures of two wandering vagrants. It premiered in Dresden on 6 February 1856. It served as the basis for a variety of different stage versions, loosely modelled on it. It was later turned into an 1888 opera Robert and Bertram.

The play has been adapted into a number of films:

...
Wikipedia