Here are 2 famous actors from Belgium died in Alzheimer's disease:
Senne Rouffaer (December 19, 1925 Kapellen, Belgium-July 15, 2006 Belgium) also known as Felicien Rouffaer was a Belgian actor, film director, screenwriter and television director. His children are called Peter Rouffaer, Bart Rouffaer, Vincent Rouffaer and Bruno Rouffaer.
Julien Schoenaerts (August 30, 1925 Bilzen-September 7, 2006 Antwerp) was a Belgian actor. He had one child, Matthias Schoenaerts.