Countess Malgorzata Plater-Zyberk (1931-1976) (1931–1976) Parents Count Jan Plater-Zyberk Countess Paulina Plater-Zyberk Children Helena Firla Barbara Firla Siblings Maria Alberta Plater-Zyberk Countess Helena Plater-Zyberk Count Hubert Plater-Zyberk Count Eugene Plater-Zyberk Partners Leszek Firla