Gian Galeazzo II. Maria Sforza (1469-1494), Duke of Milan

Isabella of Aragon (1470-1524), Leonardo da Vinci's "Mona Lisa"

King Sigismund I. of Poland (1467-1548); official marriage on 18. April 1518

1. her daughter Isabella (1519-1559); married to Jan Zapolya († 1540), King of Transylvania and Hungary
2. her son Sigismund II. August (1520-1572), King of Poland 1548-1572; his first spouse was Elisabeth of Austria († 1545), daughter of Emperor Ferdinand I. († 1564); his second spouse was Barbara Radziwill († 1551) and his third spouse was Katharina of Austria († 1572), daughter of Emperor Ferdinand I.
3. her daughter Zofia (1522-1575); married to Duke Heinrich II. of Braunschweig-Wolfenbüttel († 1568)
4. her daughter Anna (1523-1596); married to Stefan Bathory († 1586), King of Poland 1576-1586
5. her daughter Katharina (or Katarina) (1526-1583), married to Johann III. Wasa († 1592), King of Sweden 1569-1592
6. her son Olbracht, born and deceased in 1527

• Book: Maike Vogt-Luerssen: Die Sforza III: Isabella von Aragon und ihr Hofmaler Leonardo da Vinci (in German). Norderstedt 2010