Old Heidelberg (play)

While studying at the Heidelberg University, Prince Karl from Saxony falls in love with Käthie, an innkeeper's daughter, but has to give her up when his father dies, and he is called to return to his homeland and rule as King.

The play's title alludes to a poem by Joseph Victor von Scheffel.

[1] The work was a major international success and became one of the most performed plays in Germany during the first half of the 20th century.

In 1924 the play provided the basis for the 1924 operetta The Student Prince composed by Sigmund Romberg to a libretto by Dorothy Donnelly.

In 1908, the play was the basis for a libretto by Alberto Colantuoni, titled Eidelberga Mia, with music by Ubaldo Pacchierotti; it was later translated into German by Ottoman Piltz in 1909 under the original German title.