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Isabella of Clermont

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Title: Isabella of Clermont  
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Subject: Principality of Taranto, Beatrice of Naples, Ferdinand I of Naples, Frederick of Naples, Tristan de Clermont
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Isabella of Clermont

Isabella of Clermont
Queen consort of Naples
Tenure 27 June 1458–30 March 1465
Princess of Taranto
Reign 15 November 1463–30 March 1465
Predecessor Giovanni Antonio Del Balzo Orsini
Successor Alfonso II of Naples
Born c. 1424
Died 30 March 1465(1465-03-30)
Burial San Pietro Martire
Spouse Ferdinand I of Naples
among others...
Alfonso II, King of Naples
Eleanor, Duchess of Bari and Ferrara
Frederick IV, King of Naples
Cardinal John
Beatrice, Queen of Hungary and Bohemia
House House of Trastámara
Father Tristan de Clermont
Mother Caterina Del Balzo Orsini
Religion Roman Catholicism

Isabella of Clermont (c. 1424 – 30 March 1465), also known as Isabella of Taranto, was a Princess of Taranto in her own right and first Queen consort of Ferdinand I of Naples.


  • Family 1
  • Ancestry 2
  • Marriage 3
  • Issue 4


She was the elder daughter of Tristan de Clermont, Count of Copertino, and Caterina Del Balzo Orsini. She was also the niece and heiress presumptive of childless Giovanni Antonio del Balzo Orsini, Prince of Taranto. She was a granddaughter of queen Mary of Enghien (mother of Giovanni and Catherine), who had been queen consort of Naples (Queen of Jerusalem and Sicily) in 1406–1414. Thus, she was the heiress presumptive of feudal possessions in Southern Italy.



On 30 May 1444/1445, Isabella married Ferdinand of Aragon, then Duke of Calabria (1423–1494), natural son of Alfonso V of Aragon who had recently conquered the Neapolitan kingdom from French Angevins, and thus was the new liege lord of Isabella and her family.

Alfonso arranged this marriage in order to give a good future to his favorite bastard son, by giving him his own principality by marriage. Also, Alfonso wanted his loyal people (such as his own son) to have feudal fiefs in his new kingdom, which would happen in the future as soon as Ferdinand and Isabella succeeded in Taranto. The marriage also strengthened the king's grip on the current lords of Taranto.

On 27 June 1458 her husband became, by the will of king Alfonso, King in his conquered territories and as such used the title King of Naples and Jerusalem, and Isabella became Queen consort. By that point, they had several children of their own, the eldest being the 10-year-old Alphonso.

They no longer wanted to make Taranto their principal holding, but it was still a strong possession, and in 1463 Isabella succeeded her uncle Giovanni Antonio in Taranto. Isabella also inherited the Brienne claim to the Kingdom of Jerusalem.

Isabella died on 30 March 1465, and was buried in San Pietro Martire. Her heir was her eldest son, Alphonso, then Duke of Calabria, the future king Alfonso II of Naples and Jerusalem.

Her widower King Ferdinand (born 1423, died 25 January 1494) secondly married his paternal first cousin Joanna of Aragon, daughter of his uncle John II of Aragon and Juana Enríquez.


She had six children with Ferdinand:

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