1. | John III Radziwill was born about 1499 in of Vil'Nyus, Vil'Nyus, Lithuania; died in Jan 1542. John married Anna KOSCIWICZOWNA in 1524 in Rokiskis, Kovno, Lithuania. Anna was born about 1503 in Rokiskis, Kovno, Lithuania. [Group Sheet] [Family Chart]
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2. | Anna, Princess RADZIWILLOWNA (1.John1) was born in 1525 in Zemgale, Zemgale, Latvia; died in 1600. |
3. | Petronela, Princess RADZIWILLOWNA (1.John1) was born in 1526 in Zemgale, Zemgale, Latvia; died in 1564. |
4. | Princess Elzbieta RADZIWILLOWNA (1.John1) was born about 1528 in Zemgale, Zemgale, Latvia; died in 1565. |