
Giangaleazzo (or Gian Galeazzo) Visconti, first Duke of Milan
Born on:
15. October 1351
Deceased on:
3. September 1402
Father:
Galeazzo II. Visconti (1324/27-1378), younger brother of the infamous and cruel Bernaḅ Visconti († 1385)
Mother:
Bianca of Savoy (1335/36- 1387); marriage on 10. September 1350
Siblings:
- his sister Violanta († 1396) who was at first married to Lionel (1338-1367), Duke of Clarence, the second son of King Edward III. († 1377) of England, on 15 June 1367; her second husband was the Margrave Secondotto of Montferrat, they married in 1377; he was assassinated by one of his grooms of the stable in 1378; her third husband was her cousin Lodovico († 1404), the second son of Bernaḅ Visconti, in 1381
- his sister Maria (1358-1362)
- a brother, whe died shortly after death and whose name we do not know
Spouses:
- Isabella of Valois (1348-1373), sister of the French King Charles V. († 1380); marriage on 8. October 1360 (information about the French Valois only available in German)
- his cousin Caterina Visconti († 1404), third daughter of Bernaḅ Visconti; marriage on 15. November 1380
Legitimate Children:
from his first marriage to Isabella of Valois:
- a daughter (Bianca ?), born in 1366, deceased before 1374
- his son Azzone, born in 1368, deceased in 1381
- a daughter (Bona ?), born in 1369, deceased before 1374
- his daughter Valentina, born in 1371, deceased in 1408; on 17. August 1388 whe became married to Louis (1371-1407), Duke of Orléans and brother of the French King Charles VI. († 1422), – their grandson was the French King Louis XII. (1462-1515) (information about the French Valois only available in German)
- his son Gian Galeazzo, born c. 1372(?), deceased before 1374
- his son Carlo, born on 11. September 1373, deceased in 1374
- his son Giovanni Maria the Cruel, born on 9. September 1488, Duke of Milan 1402-1412, since 1408 married to Antonia Malatesta; he was fatally stabbed on 16. May 1412 – his cruelty and his bloodthirstyness exceeded everything the House of Visconti had experienced so far
- his son Filippo Maria, born on 23. September 1392, deceased on 13. August 1447, his first spouse was the widow of the Condottiere Facino Cane, Beatrice da Tenda (1372-1418), whom he had married in 1412 and whom he had executed because of alleged infidelity on 13. September 1418; his second spouse was Maria of Savoy (1411-1469) – they married on 6. October 1428 – but their marriage was never consummated; the only love in his life was Agnese del Maino (clandestine marriage?), who gave birth to his daughters, Bianca Maria (1425-1468) and Caterina Maria or Lucia Maria (born and deceased in 1426)
- - 11. three further children, a son and two daughters, who presumably died shortly after birth
from his second marriage to Caterina Visconti:
Illegitimate Children:
- his favourite son Gabriele Maria (1385-1407), whose mother was his mistress Agnese Mantegazza
- his son Antonio (1391-?), whose mother was from a peasant family
More Images:
Reading Suggestion:
- Dorothy Muir: A History of Milan under the Visconti. London 1924













