Giordano Bruno

Italian philosopher burned at the stake for heresy.

Giordano Bruno was an Italian philosopher, Dominican friar, poet, and cosmological theorist born in Nola in February 1548.^[1][2] Following his death, 19th- and early 20th-century writers widely celebrated Bruno as a scientific martyr.^[3]

Last updated 2026-09-28 from the source article.

Quick Facts

Birth name

Filippo Bruno

Born

February 1548

Birthplace

Nola, Kingdom of Naples

Died

17 February 1600

Place of death

Rome, Papal States

Cause of death

Execution by burning at the stake

Education

University of Naples (STD, 1575)

Institutions

University of Toulouse
University of Paris
University of Oxford
University of Wittenberg

Facts from the source article.

Life and work

Bruno was born Filippo Bruno, the son of a soldier and Fraulissa Savolino, and was sent to Naples for his education.^[4] In 1579 he arrived in Geneva, where he published an attack on a professor and was arrested.^[4][5] He later moved to France, teaching philosophy in Toulouse and gaining fame for his memory in Paris under King Henry III.^[6][5] In April 1583 he went to England as a guest of the French ambassador, where he completed and published his most important cosmological works.^[7][8]

He returned to Italy in 1592 at the invitation of Giovanni Mocenigo, who denounced him to the Venetian Inquisition.^[5][6] He became a member of the Dominican Order at 17, adopting the name Giordano, and was ordained a priest when he was 24.^[4][9] After coming back to the continent, he lectured on Aristotle for two years at Wittenberg and then had a short stint as a professor in Helmstedt, after which Lutherans excommunicated him.^[10]

What the cited sources add

Pogge states that the Church did not formally condemn the Copernican system until well after Bruno's death, in 1616.^[2] Pogge also observes that the lead inquisitor in Bruno's case, Robert Bellarmine, made no mention of Bruno's case in his 1616 writings on Copernicanism.^[2] Pogge further explains that Bruno's fullest expression of Copernicus appears in The Ash Wednesday Supper, which reveals his knowledge was often second-hand and incorrect.^[2]

References

Wikipedia, "Giordano Bruno" (CC BY-SA 4.0), which cites: "Giordano Bruno", Encyclopædia Britannica, Inc.; Gatti 2002, p. 1; Pogge, Richard W. "The Folly of Giordano Bruno". Ohio State University Department of Astronomy. Updated February 24, 2014. http://www.astronomy.ohio-state.edu/~ (we also read that source) en.wikipedia.org
Pogge, Richard W. "The Folly of Giordano Bruno". Ohio State University Department of Astronomy. Updated February 24, 2014. http://www.astronomy.ohio-state.edu/~. facts only, no text reused. astronomy.ohio-state.edu
Wikipedia, "Giordano Bruno" (CC BY-SA 4.0), which cites: Yates 1964, p. 450; Michael J. Crowe, The Extraterrestrial Life Debate 1750–1900, Cambridge University Press, 1986, p. 10, "[Bruno's] sources... seem to have been more numerous tha; Adam Frank (2009). The Constant Fire: Beyond the Science vs. Religion Debate, University of California Press, p. 24, "Though Bruno may have been a brilliant thi; : "This was perhaps the most dangerous notion of all... If other worlds existed with intelligent beings living there, did they too have their visitations? The i; Shackelford, "Galileo goes to jail an en.wikipedia.org
Wikipedia, "Giordano Bruno" (CC BY-SA 4.0), which cites: Singer 1968 (original not read by us) en.wikipedia.org
Wikipedia, "Giordano Bruno" (CC BY-SA 4.0), which cites: Boulting 1914, p. 42 (original not read by us) en.wikipedia.org
Wikipedia, "Giordano Bruno" (CC BY-SA 4.0), which cites: Boulting 1914, p. 42; Boulting 1914, p. 42; Boulting 1914, p. 42; Boulting 1914, p. 42 (original not read by us) en.wikipedia.org
Wikipedia, "Giordano Bruno" (CC BY-SA 4.0), which cites: Weiner, "Expelling the Beast: Bruno's Adventures in England", Modern Philology, 1980, p. 1–13; Hannam, James. God's Philosophers: How the Medieval World Laid the Foundations of Modern Science. Icon Books Ltd, 2009, 312, (original not read by us) en.wikipedia.org
Wikipedia, "Giordano Bruno" (CC BY-SA 4.0), which cites: Woodfield, "Surreptitious Printing in England 1550 - 1640", Bibliographical Society of America, 1973 (original not read by us) en.wikipedia.org
Wikipedia, "Giordano Bruno" (CC BY-SA 4.0), which cites: This is recorded in the diary of one Guillaume Cotin, librarian of the Abbey of St. Victor, who recorded recollections of a number of personal conversations he (original not read by us) en.wikipedia.org
Wikipedia, "Giordano Bruno" (CC BY-SA 4.0), which cites: Boulting 1914, p. 42; Boulting 1914, p. 42; Boulting 1914, p. 42 (original not read by us) en.wikipedia.org

Each numbered sentence above was checked against the source it cites before publication. Sentences citing Wikipedia adapt text from the English Wikipedia article Giordano Bruno (contributors), used under CC BY-SA 4.0; this entry is available under the same licence. Other sources were used for facts only; no text or images are copied from them.