Giovanni Antonio Orsini del Balzo

  (Redirected from Giovanni Antonio Del Balzo Orsini)

Giovanni Antonio (Giannantonio) Orsini del Balzo (9 September 1401 – 15 November 1463) 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).

Giovanni Antonio Orsini del Balzo
Grand Constable of the Kingdom of Naples
Giovanni Antonio Orsini del Balzo.jpg
Other titlesPrince 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)
Born1386 or 1393
Died15 November 1463
Noble familyOrsini
Spouse(s)Anna Colonna
FatherRaimondo Orsini del Balzo, Prince of Taranto
MotherMary of Enghien, an heiress of the Brienne main branch
Peter Paul Rubens's copy of The Battle of Anghiari by Leonardo da Vinci. Allegedly the 2 knights at right are Ludovico Trevisan and Giovanni Orsini.


Born in Lecce, he was the son of Raimondo Orsini del Balzo, Prince of Taranto, and Mary of Enghien, an heiress of the Brienne main branch. When his father died, he was one year old, and his mother married with King Ladislaus of Naples, who acquired all the family's possessions (1407).

In 1417 Giannantonio married Pope Martin V's niece Anna Colonna, daughter of the Prince of Amalfi. After James II' renounce, he received the Principality of Taranto from queen Joanna II of Naples on 4 May 1421. This act made him the most powerful baronial lord of the Kingdom of Naples, with lands including 7 archbishoprics, 30 bishoprics, 300 castles an extending from Salerno to Taranto.

Coat of arms of the Orsini del Balzo family

Giannantonio was also an influent member of the Neapolitan court, and remained engulfed in the struggle between Joanna and Alfonso V of Aragon, whom he supported in the civil war against John II of Anjou. When Alfonso became king of Naples, Giannantonio further increased his power with the titles of Grand Constable and of Duke of Bari.

However, when Alfonso died, he retreated to Taranto to head a group of barons against the former's son, Ferdinand I, in favour of John II. After several feats of war, Giannantonio and his side were defeated, but in the end, he managed to become reconciled with the Aragonese king. He died in Altamura Castle in 1463,[1] strangled by a certain Paolo Tricarico, perhaps a royal killer. King Ferdinand confiscated most of his lands. His niece Isabella, the legitimate heiress of Giannantonio's lands, died soon afterwards in 1465. Her heir was her eldest son, the future Alfonso II of Naples.

Illegitimate childrenEdit

  • Caterina, Countess of Conversano, Signora di Casamassima e Turi. Married Giuliantonio Acquaviva d’Aragona, 7th Duke of Atri, 1456.
  • Maria Conquesta (died after 1487), Countess of Ugento, Signora di Nardò e Castro from 1463. Married Angilberto Del Balzo, Count of Tricase and 1st Duke of Nardo circa 1463.
  • Margherita, married Antonio Centelles, Count of Catanzaro and Justiciar of Calabria.
  • Francesca, married Jacopo Sanseverino, Count of Saponara.
  • Bertoldo (died after 1488), Baron of Salice. Some issue. Count of Lecce 1463–64.
  • Another illegitimate daughter (name unknown), married Giacomo di Sanseverino, Count of Mileto. Apparently that marriage did not produce any surviving children.
Preceded by Prince of Taranto
Succeeded by
Preceded by Count of Lecce
Annexed to Kingdom of Naples



  • Berloco, Tommaso (1985). Storie inedite della città di Altamura (in Italian). ATA - Associazione Turistica Altamurana Pro Loco.