Coat of arms Traby Name Hieronim Radziwill | Family Radziwill | |
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Father Dominik Maria Radziwill Mother Marie Dolores de Agramonte Died 6 April 1945Gulag, near Luhansk, Soviet Union |
Prince Hieronim Mikołaj Radziwiłł (1885–1945) was a Polish aristocrat, landlord in Balice. Great-grandson of Prince Maciej Radziwiłł. He and his children carried the style of Serene Highness.

He was deported to a NKVD Gulag during the Soviet occupation of Poland and died on 6 April 1945.
Marriage and issue
He married Archduchess Renata of Austria on 16 January 1909 in Żywiec. They had six children:
References
Hieronim Mikołaj Radziwiłł Wikipedia(Text) CC BY-SA