Peter I of Portugal
King of Portugal from 1357 to 1367
Peter I (Portuguese: Pedro Afonso; [ˈpeðɾu]; 8 April 1320 – 18 January 1367), known as Peter the Justicier (Pedro o Justiceiro), was King of Portugal from 1357 until his death in 1367.
Early life
Born on 8 April 1320 in Coimbra, Peter was the fifth child of Afonso of Portugal and his wife, Beatrice of Castile. Of his six siblings, only two – sisters Maria and Eleonor – survived infancy.
At six years old, shortly after his father ascended the crown, Peter was granted a retinue of six people, including his butler and tutor Lopo Fernandes Pacheco.
First betrothal
In October 1327, marriage contracts were negotiated for Peter and Blanche of Castile, granddaughter of Sancho IV of Castile and James II of Aragon, and Peter's sister Maria and the future Alfonso XI of Castile. Blanche was taken to be raised in Portugal until she was of age for marriage, where she remained for eight years. According to the Chronicle of Pedro I of Portugal by Fernão Lopes, during her stay, she began to show signs of illness and "defects of judgment" which made her unsuitable for marriage and for procreation. She was examined by physicians, including those sent by Alfonso XI, who confirmed her weak mental health and incapacity, and, because of "Infante Pedro's refusal and the evident mental disorder of doña Blanca" the proposed marriage never took place.
Marriage
In 1328, Peter's eldest sister, Maria, was married to Alfonso XI of Castile. However, soon after their marriage Alfonso began a long affair with the beautiful and newly widowed Leonor de Guzman.
“Peter I of Portugal” enters the record as king of Portugal from 1357 to 1367. Crown Archives preserves that source wording while asking what Peter, Portugal and King can confirm, complicate or overturn.
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“Peter I of Portugal” is worth following because a concise public description often conceals a longer documentary argument. Here, Peter, Portugal and King provides the most credible route into that argument.
Biographical claims are most persuasive when dates, appointments and relationships can be traced to records created close to the events described. The source revision retrieved here is dated Jul 15, 2026. The linked authority identifier is Q295824. VIAF identifies the subject as 268956391. The Library of Congress control number is n81070810. 3 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1320, 1367, 1357 and 1327.
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This entry incorporates text from “Peter I of Portugal” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.