Ruler · 1358 – 1390

John I of Castile

Lived 1358 – 1390; politician. Monarch of Castile and Leon of Crown of Castile, 1379 – 1390; also in the line of House of Trastámara.

Wikidata's English label: John I of Castile and Leon.

For the full story, the article on Wikipedia (CC BY-SA 4.0); this page holds what the record says of the reign.

Lived: 1358 – 1390; 32 years
In office: 11 years; one reign
Lines: 2; states
Left it: natural death; Kokkonen & Sundell

Monarch of Castile and Leon

Crown of Castile · the 8th of 20 dated reigns · 1230 – 1714

4 before

Alfonso XI of Castile1312 – 1350

Peter of Castile1350 – 1369

Henry II of Castile1369 – 1379

John I of Castile1379 – 1390

Henry III of Castile1390 – 1407

John II of Castile1407 – 1454

Henry IV of Castile1454 – 1474

9 after

deposed, abdicated, exiled or removeddied in officeleft alive by a regular roada second row: a reign that began before the last had ended — rival claimants, or a shared thronethis entry

Reigned 1379 – 1390 · 11 years · came to it aged 21

Came to it: the child of the ruler before, on record
Left it: natural deathcoded by Kokkonen & Sundell

Also in the line of House of Trastámara (2nd of 8).

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John I of Castile in the atlas: the article, every line they sat in, and the map in their years.
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Wikidata Q310421 (CC0) · the reigns from Wikidata's P39 terms, the rulers' own articles read by grammar (sentences quoted above, CC BY-SA 4.0) and Kokkonen & Sundell where they code the line · data built 2026-10-06 · Pastlas v2.9.1, by Oleh Voronko. The published atlas and its data are for non-commercial use.