Platek was born on 3 November 1899 in Warsaw, Poland.

[1] She was the companion and later the wife of the German painter Felix Nussbaum.

They lived in Paris, then Ostend, settling in Brussels where they married in 1937.

[4] In 2014 the International Auschwitz Committee sponsored a program entitled "Find Felka!

The Felix Nussbaum Haus in Osnabrück includes a permanent display of Platek's work.