Stupid question but the answers are:
Hubert
Q-bert
Rupert
Schobert
A Schubert composition is a piece of music that was written by Schubert.
Bruno Schubert's birth name is Bruno Leon Schubert.
Franz Schubert's birth name is Schubert, Franz Peter.
Michaela Schubert's birth name is Michaela Hannah Schubert.
Ian Schubert was born in 1957.
Ferdinand Schubert died in 1859.
Ferdinand Schubert was born in 1794.
Frank Schubert was born in 1915.
Frank Schubert died in 2003.
Katina Schubert was born in 1961.
Günter Schubert was born in 1938.
Günter Schubert died in 2008.