The cause of death was heart failure, per his stepson Peter C. Sprung. He was 85 years old
Norbert Wollheim died in 1998.
Norbert Čapek died in 1942.
Norbert Burgmüller died in 1836.
Norbert Barlicki died in 1941.
Norbert Casteret died in 1987.
Norbert Nuttelman died in 1986.
Norbert Roettiers died in 1727.
Norbert Moret died in 1998.
Norbert Frýd died in 1976.
Norbert Pearlroth died in 1983.
Norbert Kricke died in 1984.
Norbert Klein died in 1933.