The Tree of Europe · Person

James II of Aragon

«the Just»

King of Aragon who consolidated the Crown’s Mediterranean influence after the Sicilian crisis. His diplomacy and alliances placed the House of Aragon at the centre of western Mediterranean politics.

1267 – 1327King of Aragon · Former king of SicilyBarcelona · ES
Portrait of James II of Aragon
Contemporary representationUsatici et Constitutiones Cataloniae · BnF, Latin 4670 AAnonymous · c. 1315–1325Bibliothèque nationale de FranceCC BY-SA 3.0 · 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: 1267 Documented

Death: 2 November 1327 Documented

Role: King of Aragon · Former king of Sicily

Other recorded names: James the Just · James I of Sicily

Dynasty: Barcelona · ES

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

Recorded governments and reigns
King · Trinacria · Reign Pending review1285–1295Effective rule
King · Aragon · Reign Documented1291–1327Effective rule
Count · County of Barcelona · County Pending review1291–1327Effective rule
King · Valencia · Reign Pending review1291–1327Effective rule
King · Sardinia · Reign Pending review1326–1327Effective rule
Family network

Recorded relationships

Parents
Partners
Crowns and unions

Their titles over time

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

Governments in 1291

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

11 recorded claims · 8 without a claim-specific source. Context references do not by themselves verify every fact.

Dates (2/2 with a precise source)
Family and relationships (0/4 with a precise source)
  • FatherPending review

    Peter III of Aragon

    A precise source has not yet been added.
    No individual review recorded ·
  • MotherPending review

    Constance II of Sicily

    A precise source has not yet been added.
    No individual review recorded ·
  • Marriage or partnershipPending review

    Isabella of Castile

    A precise source has not yet been added.
    No individual review recorded ·
  • Marriage or partnershipPending review

    Blanche of Anjou

    A precise source has not yet been added.
    No individual review recorded ·
Governments (1/5 with a precise source)
  • GovernmentPending review

    King · Trinacria · 1285–1295

    A precise source has not yet been added.
    No individual review recorded ·
  • GovernmentDocumented

    King · Aragon · 1291–1327

    The authority record dates this office to 1291–1327.
    Reviewed on 2026-10-17 by El Árbol de Europa ·
  • GovernmentPending review

    Count · County of Barcelona · 1291–1327

    A precise source has not yet been added.
    No individual review recorded ·
  • GovernmentPending review

    King · Valencia · 1291–1327

    A precise source has not yet been added.
    No individual review recorded ·
  • GovernmentPending review

    King · Sardinia · 1326–1327

    A precise source has not yet been added.
    No individual review recorded ·
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.

Related stories

Follow this person through history

Story · Spanish original

The kingdom divided in two

Hohenstaufen, Anjou and Aragon contend for Sicily and Naples

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