Frederick IV King Naples 1452-1504

On 30th May 1445 [his father] Ferdinand I King Naples [aged 21] and [his mother] Isabella Clermont Queen Consort Naples [aged 21] were married. He the illegitmate son of [his grandfather] Alfonso V King Aragon [aged 49] and [his grandmother] Giralda Carlino.

On 19th April 1452 Frederick IV King Naples was born to Ferdinand I King Naples [aged 28] and Isabella Clermont Queen Consort Naples [aged 28].

On 27th June 1458 [his grandfather] Alfonso V King Aragon [aged 62] died. His son [his father] Ferdinand [aged 35] succeeded I King Naples. [his mother] Isabella Clermont Queen Consort Naples [aged 34] by marriage Queen Consort Naples. His brother John [aged 59] succeeded II King Aragon.

On 30th March 1465 [his mother] Isabella Clermont Queen Consort Naples [aged 41] died.

On 10th October 1465 [his brother] Alfonso II King Naples [aged 16] and [his sister-in-law] Ippolita Maria Sforza [aged 19] were married at Milan. She the daughter of Francesco Sforza I Duke Milan [aged 64] and Bianca Maria Visconti [aged 40]. He the son of [his father] Ferdinand I King Naples [aged 42] and [his mother] Isabella Clermont Queen Consort Naples.

On 14th September 1476 [his father] Ferdinand I King Naples [aged 53] and [his step-mother] Joanna of Aragon Queen Consort Naples [aged 22] were married. She by marriage Queen Consort Naples. The difference in their ages was 30 years. She the daughter of John II King Aragon [aged 78] and Juana Enríquez Queen Consort Aragon. He the illegitmate son of [his grandfather] Alfonso V King Aragon and [his grandmother] Giralda Carlino. They were first cousins.

On 11th September 1478 Frederick IV King Naples [aged 26] and Anne of Savoy [aged 23] were married. She the daughter of Amadeus "Happy" Savoy IX Duke Savoy and Yolande Valois Duchess Savoy [deceased]. He the son of Ferdinand I King Naples [aged 55] and Isabella Clermont Queen Consort Naples. They were fourth cousins.

Around 1480 [his daughter] Charlotte of Naples was born to Frederick IV King Naples [aged 27] and [his wife] Anne of Savoy [aged 24]. She married 10th June 1500 Guy XVI Count de Laval.

In February 1480 [his wife] Anne of Savoy [aged 24] died.

On On 28th November 1487 Frederick IV King Naples [aged 35] and Isabella del Balzo Queen Consort of Naples [aged 22] were married. He the son of Ferdinand I King Naples [aged 64] and Isabella Clermont Queen Consort Naples. They were first cousin once removed.

In 1492 [his daughter] Julia of Naples was born to Frederick IV King Naples [aged 39] and [his wife] Isabella del Balzo Queen Consort of Naples [aged 26]. Coefficient of inbreeding 3.12%. She married 21st April 1533 John George Marquis of Montferrat, son of Boniface III Marquis of Montferrat and Maria of Serbia Marchioness of Montferrat.

On 25th January 1494 [his father] Ferdinand I King Naples [aged 70] died. His son [his brother] Alfonso [aged 45] succeeded II King Naples.

On 18th December 1495 [his brother] Alfonso II King Naples [aged 47] died. His son [his nephew] Ferdinand [aged 26] succeeded II King Naples. [his half-sister] Joanna Trastámara Queen Consort Naples [aged 16] by marriage Queen Consort Naples.

In October 1496 [his nephew] Ferdinand II King Naples [aged 27] died. His uncle Frederick [aged 44] succeeded IV King Naples.

On 10th June 1500 [his son-in-law] Guy XVI Count de Laval [aged 23] and Charlotte of Naples [aged 20] were married. She the daughter of Frederick IV King Naples [aged 48] and Anne of Savoy.

On 9th November 1504 Frederick IV King Naples [aged 52] died.

In 1533 [his former wife] Isabella del Balzo Queen Consort of Naples [aged 67] died.