Henry III of Castile
king of Castille (1379-1407)

Henry III of Castile (4 October 1379 – 25 December 1406), called the Suffering due to his ill health (Spanish: Enrique el Doliente, Galician: Henrique o Doente), was the son of John I and Eleanor of Aragon. He succeeded his father as King of Castile in 1390.
Birth and education
Henry was born in Burgos, the capital of Castile, the first-born child of the recently crowned king John I of Castile and his wife Eleanor of Aragon. His younger brother Ferdinand grew up to become king of Aragon.
His upbringing was entrusted to Inés Lasso de la Vega, the wife of John Niño. As a child he was educated by Diego de Anaya Maldonado, Bishop of Tui-Vigo, who later became Archbishop of Seville. His tutor was Juan Hurtado de Mendoza el Limpio and his confessor was the Dominican Alonso de Cusanza, who later became Bishop of Salamanca and León.
Prince of Asturias
At the time of his wedding, he received the title Prince of Asturias with the approval of the court of Briviesca. This title designated him as the heir apparent. He was the first person to hold this title, with earlier heirs to the throne being known as infantes mayores.
The public source identifies “Henry III of Castile” as king of Castille (1379-1407). This brief keeps that definition visible, then builds a research path around Henry, Castile and king.
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Chronology provides the most reliable spine for this subject; interpretation should follow only after identities and dates are secure. The source revision retrieved here is dated Jun 28, 2026. The linked authority identifier is Q312104. VIAF identifies the subject as 289885214. The Library of Congress control number is n96020325. 3 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1379, 1406 and 1390.
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This entry incorporates text from “Henry III of Castile” 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.