Isabella I of Castile
Queen of Castile whose marriage to Ferdinand of Aragon linked the two major Iberian crowns without immediately merging their institutions. Her reign shaped the dynastic inheritance later received by the Habsburgs.

This profile is translated. Names of dynasties and territories, picture credits and original documentary records retain their source language. Links marked ES open the Spanish edition.
Key details
Birth: 22 April 1451 Documented
Death: 26 November 1504 Documented
Role: Queen of Castile
Dynasty: Trastámara · ES
Territories: Castilla (ES) · Aragón (ES) · León (ES)
Recorded relationships
Governments and documentary notes · Spanish original
Sus títulos en el tiempo
Sigue cómo cambiaron los territorios y las funciones de Isabella I of Castile. Cada título conserva su condición propia.
Gobiernos en 1474
- Corona de Castilla2 títulos y mandatos
Fechas anuales: coincidir en un año no demuestra que dos mandatos se ejercieran el mismo día. Las regencias y corregencias conservan su etiqueta.
Evidence for this profile
7 recorded claims · 1 without a claim-specific source. Context references do not by themselves verify every fact.
Dates (2/2 with a precise source)
- BirthDocumented
22 April 1451
- DeathDocumented
26 November 1504
Family and relationships (3/3 with a precise source)
- FatherDocumented
Juan II de Castilla
- MotherDocumented
Isabel de Portugal
- Marriage or partnershipDocumented
Fernando II de Aragón
Governments (1/2 with a precise source)
- GovernmentDocumented
Reina · Castilla · 1474–1504
- GovernmentPending review
Reina · León · 1474–1504
A precise source has not yet been added.
Editorial history
- 2026-10-12 · Claim registry added; existing historical data kept. Specific sourcing remains to be reviewed.
- 2026-10-08 · Claim registry added; existing historical data kept. Specific sourcing remains to be reviewed.
- 2026-10-04 · Claim registry added; existing historical data kept. Specific sourcing remains to be reviewed.
- 2026-10-04 · Claim registry added; existing historical data kept. Specific sourcing remains to be reviewed.
- 2026-10-03 · Claim registry added; existing historical data kept. Specific sourcing remains to be reviewed.
- 2026-09-30 · The duchy is limited to Dijon and Autun; each other fief now enters the map only under its dated ruler. John III of Namur and the Nevers/Rethel branch were added. The previous shape combined later counties and unrelated lands as if all belonged to the duchy from 1363.
- 2026-09-28 · Claim registry added; existing historical data kept. Specific sourcing remains to be reviewed.
- 2026-09-30 · Dates and parentage in the Isabella I–Joanna I–Charles V corridor were reviewed with passage-level references. Other claims remain pending.
Follow this person through history
More paths from Isabella I of Castile
Family
Juan II de CastillaHistorical profile · ES1405 – 1454Isabel de PortugalHistorical profile · ESc. 1428 – 1496
Fernando II de AragónHistorical profile · ES1452 – 1516
Juana I de CastillaHistorical profile · ES1479 – 1555
Isabel de AragónHistorical profile · ES1470 – 1498María de AragónHistorical profile · ES1482 – 1517Same dynasty
Federico I de NápolesHistorical profile · ES1451 – 1504Fernando II de NápolesHistorical profile · ES1469 – 1496Beatriz de NápolesHistorical profile · ES1457 – 1508Alfonso II de NápolesHistorical profile · ES1448 – 1495Leonor de NápolesHistorical profile · ES1450 – 1493Juana de AragónHistorical profile · ES1455 – 1517In their lifetime
Charles VHoly Roman Emperor1500 – 1558
Felipe I de CastillaHistorical profile · ES1478 – 1506Enrique IV de CastillaHistorical profile · ES1425 – 1474Miguel de la Paz de Portugal y AragónHistorical profile · ES1498 – 1500
Isabel de PortugalHistorical profile · ES1503 – 1539Juan II de AragónHistorical profile · ES1398 – 1479