Lize Marke was born on December 1, 1936 in Denderleeuw, Flanders, Belgium as Liliane Couck. She is an actress, known for Muziekparade (1963), Volkskermis luchtbal (1967) and September in de zon (1966).
Marke started singing professionally in 1962, and first participated in the Belgian Eurovision selection in 1963, when she performed two songs, "Luister naar de wind" and "Saksisch porselein", which made the final, finishing in second and fourth respectively.
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In 1965, Marke fronted her own television show on Belgian channel VRT. Thereafter her career went quieter, although she continued to release records and perform live until the mid-1970s.
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Marke was the first female singer to represent Belgium at Eurovision since Mony Marc in the inaugural contest of 1956.