Count Franz Joseph Zamoyski 
Children of Count Franz Joseph Zamoyski and Countess Sophie Broel-Plater
- Count Jerzy Karol Zamoyski+ b. 1919
- Countess Marie Christine Zamoyska+ b. 1920
- Countess Elizabeth Zamoyska b. 1921
- Countess Marie Antonia Zamoyska b. 1923
- Countess Sophie Zamoyska b. 1925, d. 1944
Countess Sophie Broel-Plater
Children of Countess Sophie Broel-Plater and Count Franz Joseph Zamoyski
- Count Jerzy Karol Zamoyski+ b. 1919
- Countess Marie Christine Zamoyska+ b. 1920
- Countess Elizabeth Zamoyska b. 1921
- Countess Marie Antonia Zamoyska b. 1923
- Countess Sophie Zamoyska b. 1925, d. 1944
Count Stanislaus Zamoyski 
Countess Róza Belina Zamoyska 
Her married name became Brzozowska.
Child of Countess Róza Belina Zamoyska and Stefan Brzozowski
- Teresa Karolina Brzozowska b. 1916, d. 1946
Stefan Brzozowski 
Child of Stefan Brzozowski and Countess Róza Belina Zamoyska
- Teresa Karolina Brzozowska b. 1916, d. 1946
Countess Marie Therese Zamoyska 
Her married name became Jezierski.
Count Jerzy Jezierski

He fought in the Second World War.
Count Jerzy Karol Zamoyski
Children of Count Jerzy Karol Zamoyski and Ewline Zurkiewicz
- Countess Barbara Zamoyska+ b. 1941
- Countess Joanne Zamoyska b. 1944
- Count Jan Zamoyski b. 1949
Stanislaus Piechowski
Child of Stanislaus Piechowski and Countess Barbara Zamoyska
- Marcin Piechowski b. 10 Dec 1962
Marcin Piechowski
