Ask the Chatbot Games & Quizzes ProCon History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture Money Videos
Peter III
Table of Contents
Introduction References & Edit History Quick Facts & Related Topics
Quizzes
Napoleon Bonaparte. Napoleon in Coronation Robes or Napoleon I Emperor of France, 1804 by Baron Francois Gerard or Baron Francois-Pascal-Simon Gerard, from the Musee National, Chateau de Versailles.
Kings and Emperors (Part III) Quiz
Read Next
King Charles III and Queen Camilla (Camilla, Queen Consort) wave from the balcony of Buckingham Palace during the Coronation of King Charles in London, England on May 6, 2023
British Royal Line of Succession
King George V of Britain, c. 1910, shortly after his accession to the throne
How Did King George V Really Die?
Funchal, Madeira Island, Portugal.
Portugal Is Home to These 17 Inspiring Buildings
Discover
New York NY/ USA- November 23, 2018 Hordes of shoppers throng the Macy's Herald Square flagship store in New York looking for bargains on the day after Thanksgiving, Black Friday.
Why Is It Called Black Friday?
Diverse elementary school children wearing school uniforms running outside of school. Boys girls
Pro and Con: School Uniforms
Title: Senate Square, St. Petersburg, December 14, 1825: repression of the troop mutiny - watercolor by Carl Ivanovitch Kollman, 1825 depicts Decembrist uprising clashing with cavalry, with spectators watching. (new style December 26, 1825) Europe. Saint
8 of the Largest Empires in History
A human Inuit skull in a stone chambered cairn in Ilulissat in Greenland. These ancient graves are pre christian and are at least 2000
14 Tough Questions Answered
Los Angeles Police Department wanted flyer on Elizabeth Short, aka the "Black Dahlia," who was brutally murdered in January 1947. The FBI supported the Los Angeles Police Department in the case, including by identifying Short through her fingerprints that
America’s 5 Most Notorious Cold Cases (Including One You May Have Thought Was Already Solved)
The Cheshire Cat is a fictional cat from Lewis Carroll's Alice's Adventures in Wonderland. (Alice in Wonderland)
11 Banned Books Through Time
Iraqi Army Soldiers from the 9th Mechanized Division learning to operate and maintain M1A1 Abrams Main Battle Tanks at Besmaya Combat Training Center, Baghdad, Iraq, 2011. Military training. Iraq war. U.S. Army
8 Deadliest Wars of the 21st Century

Peter III

king of Portugal
verifiedCite
While every effort has been made to follow citation style rules, there may be some discrepancies. Please refer to the appropriate style manual or other sources if you have any questions.
Select Citation Style
Feedback
Corrections? Updates? Omissions? Let us know if you have suggestions to improve this article (requires login).
Thank you for your feedback

Our editors will review what you’ve submitted and determine whether to revise the article.

External Websites
Written and fact-checked by
The Editors of Encyclopaedia Britannica
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.
The Editors of Encyclopaedia Britannica
Article History
Quick Facts
Born:
July 5, 1717, Lisbon
Died:
May 25, 1786, Ajuda, Port. (aged 68)
House / Dynasty:
House of Bragança
Notable Family Members:
spouse Maria I
father John V
son John VI
brother Joseph
See all related content

Peter III (born July 5, 1717, Lisbon—died May 25, 1786, Ajuda, Port.) was the king consort of Portugal from 1777, with Queen Maria I. The younger son of John V of Portugal, he was married in July 1760 to the daughter of his elder brother, King Joseph. When she became queen as Maria I (February 1777), Peter became nominally king. He devoted himself entirely to religious practices.

This article was most recently revised and updated by Encyclopaedia Britannica.