Count Eugene Plater-Zyberk
Countess Malgorzata Plater-Zyberk 
Her married name became Firla.
Children of Countess Malgorzata Plater-Zyberk and Leszek Firla
- Helena Firla b. 1958
- Barbara Firla b. 1962
Leszek Firla
Children of Leszek Firla and Countess Malgorzata Plater-Zyberk
- Helena Firla b. 1958
- Barbara Firla b. 1962
Helena Firla
Barbara Firla
Countess Helena Plater-Zyberk
Her married name became Julien-Laferriere.
Children of Countess Helena Plater-Zyberk and Claude Julien-Laferriere
- Gabriel Julien-Laferriere b. 1962
- Jean Julien-Laferriere b. 1963
- Hubert Julien-Laferriere b. 1966
- Thadee Julien-Laferriere b. 1972
Claude Julien-Laferriere
Children of Claude Julien-Laferriere and Countess Helena Plater-Zyberk
- Gabriel Julien-Laferriere b. 1962
- Jean Julien-Laferriere b. 1963
- Hubert Julien-Laferriere b. 1966
- Thadee Julien-Laferriere b. 1972
Gabriel Julien-Laferriere
Jean Julien-Laferriere
Hubert Julien-Laferriere
