Religion · 1499–1565

Pius IV — Age & Birthday

Born: 31 March 1499 · Died: 9 December 1565 · Age at death: 66

How old was Pius IV when he died?

Pius IV died aged 66. He was born on 31 March 1499 and died on 9 December 1565.

Pope who presided over the final sessions of the Council of Trent

Did you know?He was a member of the famous Medici family and was responsible for commissioning the historic Villa Pia in the Vatican Gardens.

Quick facts

  • Date of birth31 March 1499
  • Date of death9 December 1565
  • Age at death66
  • NationalityItalian
  • BirthplaceMilan, Italy
  • OccupationCatholic priest, Catholic bishop

Editor's Take:

Giovanni Angelo Medici came from a Milanese family, not the famous Florentine one. He followed the stern Paul IV and took a gentler approach. He freed prisoners held by the Inquisition and pardoned enemies of his predecessor. His great task was finishing the Council of Trent. The council's decisions shaped Catholicism until the 1960s. His nephew Charles Borromeo became a leading reformer. He also funded new building in Rome.

Key Milestones

  1. 1559: Elected pope
  2. 1563: Closes the Council of Trent
  3. 1564: Issues the Tridentine creed

Pope Pius IV (Italian: Pio IV; 31 March 1499 – 9 December 1565), born Giovanni Angelo Medici, was head of the Catholic Church and ruler of the Papal States from 25 December 1559 to his death, in December 1565. Born in Milan, his family considered itself a branch of the House of Medici and used the same coat of arms.

Text from Wikipedia, licensed under CC BY-SA 4.0

Profile

Pius IV: Pope of the Council of Trent

Italian pope, 1499-1565

Pius IV was born in Milan on 31 March 1499.

He was elected pope in 1559.

He reopened and closed the Council of Trent in 1563.

His nephew was Saint Charles Borromeo.

Career highlights

  1. 1549Cardinal: named a cardinal
  2. 1559Pope: elected pope
  3. 1562Trent: council reopens
  4. 1563Trent closes: final session
  5. 1564Creed: Tridentine profession of faith

Did you know?He commissioned Michelangelo to design the Porta Pia gate in Rome.

Age at death
66
Years since death
460

Explore Pius IV's birthday

Questions people ask

Frequently asked questions

When is Pius IV's birthday?
Pius IV's birthday is March 31. He was born on March 31, 1499 in Milan, Italy.
How old was Pius IV when he died?
Pius IV died on December 9, 1565, aged 66.
Who shares a birthday with Pius IV?
Famous people who share Pius IV's March 31 birthday include René Descartes, Joseph Haydn, Al Gore, Octavio Paz and William Lawrence Bragg.

Born on the same day6

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Joseph Haydn1732–1809

Joseph Haydn

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Al Goreb. 1948

Al Gore

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Octavio Paz1914–1998

Octavio Paz

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William Lawrence Bragg1890–1971

William Lawrence Bragg

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Ewan McGregorb. 1971

Ewan McGregor

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Reviewed by the Who Shares My Birthday editorial team.

Last reviewed: October 2026