Giovanni Antonio (Giannantonio) Orsini del Balzo was a southern Italian nobleman and military leader; he was Prince of Taranto, Duke of Bari, Count of Lecce, Acerra, Soleto and Conversano, as well as Count of Matera (1433–63) and of Ugento (1453–63).
- Occupation
- aristocrat, military personnel
- Citizenship
- Kingdom of Naples
- Born
- 1386
- Died
- November 15, 1463