Willem Duyn died on December 3, 2004, in near Almelo, Netherlands.
Willem Duyn's birth name is Wilhelmus Jacobus Duyn.
Willem Duyn was born on March 31, 1937, in Haarlem, Noord-Holland, Netherlands.
The cast of Nationaal songfestival - 1974 includes: Willem Duyn as Singer Willem Duys as Himself - Host Maggie MacNeal as Singer
Mona Van Duyn died on December 2, 2004 at the age of 83.
The cast of Phonzeit - 1975 includes: Georg Danzer Willem Duyn as Singer Brian Eno
Willem Sassen died in 2002.
Willem Bilderdijk died in 1831.
Willem Vrolik died in 1863.
Willem Witsen died in 1923.
Willem Siebenhaar died in 1936.
Willem Grasso died in 1903.
Willem Willink died in 1841.