Förster-Nietzsche, Mussolini and Hitler

[KXX4493553 at aol.com]

Just heard in the radio that Elisabeth Förster-Nietzsche, the sister of 
Nietzsche, wrote a theatre play together with Mussolini (!), called "campo di 
maggio" (hope this Italian is right). Hitler appeared at the first 
performance and "the lama" (nickname of Nietzsche's sister) gave him 
Nietzsche's walking stick as a gift. This must be happened in the twenties, 
Does anybody know anything about that?
kwp