The Tree of Europe · Person

John II of Aragon

«the Great»

King of Aragon and Navarre, and a central figure in the dynastic conflicts of fifteenth-century Iberia. The father of Ferdinand the Catholic, he played a key role in the expansion of the Trastámara dynasty.

1398 – 1479King of Aragon and NavarreTrastámara · ES

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Imaginary portraitJohn II of AragonManuel Aguirre y Monsalbe · 1854Provincial Council of Zaragoza · inv. 2040Public domain · PDM 1.0 · Source

This complete profile is available in English. Bibliographic titles retain their original language. Links marked ES open the Spanish edition.

Historical profile

Key details

Birth: 29 June 1398 Documented

Death: 19 January 1479 Documented

Role: King of Aragon and Navarre

Other recorded names: John the Faithless

Dynasty: Trastámara · ES

Territories: Aragon (ES) · Navarre (ES) · Trinacria (ES) · County of Barcelona (ES) · Valencia (ES) · Majorca (ES) · Sardinia (ES)

Recorded governments and reigns

King · Navarre · Reign Documented1425–1479Jure uxoris

King · Aragon · Reign Documented1458–1479Effective rule

King · Trinacria · Reign Documented1458–1479Effective ruleIn 1468 he appointed his son Ferdinand king and co-ruler of Sicily; he retained the crown until his death.

Count · County of Barcelona · County Documented1458–1479Effective rule

King · Valencia · Reign Documented1458–1479Effective rule

King · Majorca · Reign Documented1458–1479Effective rule

King · Sardinia · Reign Documented1458–1479Effective rule

Family network

Recorded relationships

Parents

Ferdinand I of Aragon · ESDocumentedEleanor of Alburquerque · ESDocumented

Partners

Juana Enríquez · ESDocumentedBlanche I of Navarre · ESDocumented

Children

Ferdinand II of AragonCharles, Prince of Viana · ESJoanna of Aragon · ESEleanor of Navarre · ESBlanche II of Navarre · ES

Crowns and unions

Their titles over time

Follow the changing territories and offices of John II of Aragon. Each title retains its own status.

Period

Governments in 1458

NavarreKing
View titles and jurisdictions
- Navarre · ESKing · Jure uxoris1425–1479
Crown of Aragon6 titles and offices
View titles and jurisdictions
- Aragon · ESKing · Effective rule1458–1479
- Trinacria · ESKing · Effective rule1458–1479 · In 1468 he appointed his son Ferdinand king and co-ruler of Sicily; he retained the crown until his death.
- County of Barcelona · ESCount · Effective rule1458–1479
- Valencia · ESKing · Effective rule1458–1479
- Majorca · ESKing · Effective rule1458–1479
- Sardinia · ESKing · Effective rule1458–1479
The kingdoms and territories of the Crown retained their own institutions. Source for this grouping

Annual dates: overlap within one year does not prove that two offices were held on the same day. Regencies and co-rulerships retain their labels.

Documentation

Sources for this profile

Biographical and contextual references in their original language. Sources and methodology.

Evidence for this profile

13 recorded claims · 0 without a claim-specific source. Context references do not by themselves verify every fact.

Dates (2/2 with a precise source)

BirthDocumented
29 June 1398
Real Academia de la Historia · Juan II de Aragón y de Navarra · Biographical heading
Reviewed on 2026-09-30 by El Árbol de Europa ·
DeathDocumented
19 January 1479
Real Academia de la Historia · Juan II de Aragón y de Navarra · Biographical heading
Reviewed on 2026-09-30 by El Árbol de Europa ·

Family and relationships (4/4 with a precise source)

FatherDocumented
Ferdinand I of Aragon
Paternal relationship confirmed by the source.
Gran Enciclopèdia Catalana · Joan II de Catalunya-Aragó · Medina del Campo, 29 July 1398 – Barcelona, 19 January 1479; King of Navarre (1425–1479), with Blanche I from 1425, and king of the Crown of Aragon (1458–1479); married Blanche of Navarre in 1420 and Juana Enríquez in 1444.
Reviewed on 2026-10-19 by El Árbol de Europa ·
MotherDocumented
Eleanor of Alburquerque
Maternal relationship confirmed by the source.
Gran Enciclopèdia Catalana · Joan II de Catalunya-Aragó · Medina del Campo, 29 July 1398 – Barcelona, 19 January 1479; King of Navarre (1425–1479), with Blanche I from 1425, and king of the Crown of Aragon (1458–1479); married Blanche of Navarre in 1420 and Juana Enríquez in 1444.
Reviewed on 2026-10-19 by El Árbol de Europa ·
Marriage or partnershipDocumented
Juana Enríquez
Marriage confirmed by the source.
Gran Enciclopèdia Catalana · Joan II de Catalunya-Aragó · Medina del Campo, 29 July 1398 – Barcelona, 19 January 1479; King of Navarre (1425–1479), with Blanche I from 1425, and king of the Crown of Aragon (1458–1479); married Blanche of Navarre in 1420 and Juana Enríquez in 1444.
Reviewed on 2026-10-19 by El Árbol de Europa ·
Marriage or partnershipDocumented
Blanche I of Navarre
Marriage confirmed by the source.
Gran Enciclopèdia Catalana · Joan II de Catalunya-Aragó · Medina del Campo, 29 July 1398 – Barcelona, 19 January 1479; King of Navarre (1425–1479), with Blanche I from 1425, and king of the Crown of Aragon (1458–1479); married Blanche of Navarre in 1420 and Juana Enríquez in 1444.
Reviewed on 2026-10-19 by El Árbol de Europa ·

Governments (7/7 with a precise source)

GovernmentDocumented
King · Navarre · 1425–1479
King of Navarre, 1425–1479, checked against the source.
Gran Enciclopèdia Catalana · Joan II de Catalunya-Aragó · Medina del Campo, 29 July 1398 – Barcelona, 19 January 1479; King of Navarre (1425–1479), with Blanche I from 1425, and king of the Crown of Aragon (1458–1479); married Blanche of Navarre in 1420 and Juana Enríquez in 1444.
Reviewed on 2026-10-19 by El Árbol de Europa ·
GovernmentDocumented
King · Aragon · 1458–1479
Real Academia de la Historia · Juan II de Aragón y de Navarra · Biographical heading
Reviewed on 2026-09-30 by El Árbol de Europa ·
GovernmentDocumented
King · Trinacria · 1458–1479
In 1468 he appointed his son Ferdinand king and co-ruler of Sicily; he retained the crown until his death.
Gran Enciclopèdia Catalana · Joan II de Catalunya-Aragó · Medina del Campo, 29 July 1398 – Barcelona, 19 January 1479; King of Navarre (1425–1479), with Blanche I from 1425, and king of the Crown of Aragon (1458–1479); married Blanche of Navarre in 1420 and Juana Enríquez in 1444.
Reviewed on 2026-10-19 by El Árbol de Europa ·
GovernmentDocumented
Count · County of Barcelona · 1458–1479
Count of Barcelona, 1458–1479, checked against the source.
Gran Enciclopèdia Catalana · Joan II de Catalunya-Aragó · Medina del Campo, 29 July 1398 – Barcelona, 19 January 1479; King of Navarre (1425–1479), with Blanche I from 1425, and king of the Crown of Aragon (1458–1479); married Blanche of Navarre in 1420 and Juana Enríquez in 1444.
Reviewed on 2026-10-19 by El Árbol de Europa ·
GovernmentDocumented
King · Valencia · 1458–1479
King of Valencia, 1458–1479, checked against the source.
Gran Enciclopèdia Catalana · Joan II de Catalunya-Aragó · Medina del Campo, 29 July 1398 – Barcelona, 19 January 1479; King of Navarre (1425–1479), with Blanche I from 1425, and king of the Crown of Aragon (1458–1479); married Blanche of Navarre in 1420 and Juana Enríquez in 1444.
Reviewed on 2026-10-19 by El Árbol de Europa ·
GovernmentDocumented
King · Majorca · 1458–1479
King of Majorca, 1458–1479, checked against the source.
Gran Enciclopèdia Catalana · Joan II de Catalunya-Aragó · Medina del Campo, 29 July 1398 – Barcelona, 19 January 1479; King of Navarre (1425–1479), with Blanche I from 1425, and king of the Crown of Aragon (1458–1479); married Blanche of Navarre in 1420 and Juana Enríquez in 1444.
Reviewed on 2026-10-19 by El Árbol de Europa ·
GovernmentDocumented
King · Sardinia · 1458–1479
King of Sardinia, 1458–1479, checked against the source.
Gran Enciclopèdia Catalana · Joan II de Catalunya-Aragó · Medina del Campo, 29 July 1398 – Barcelona, 19 January 1479; King of Navarre (1425–1479), with Blanche I from 1425, and king of the Crown of Aragon (1458–1479); married Blanche of Navarre in 1420 and Juana Enríquez in 1444.
Reviewed on 2026-10-19 by El Árbol de Europa ·

Biographical and contextual references (3)

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.

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Story · Spanish original

The kingdom divided in two

Hohenstaufen, Anjou and Aragon contend for Sicily and Naples

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