The Tree of Europe · Person
Baldwin IV of Jerusalem
«the Leper King»
King of Jerusalem from the age of thirteen. Despite suffering from leprosy, he personally led the kingdom and its army during the growing confrontation with Saladin.
This complete profile is available in English. Bibliographic titles retain their original language. Links marked ES open the Spanish edition.
Key details
Birth: 1161 Documented
Death: 16 March 1185 Documented
Role: King of Jerusalem
Dynasty: Anjou-Gâtinais · ES
Territories: Jerusalem (ES)
Recorded governments and reigns
King · Jerusalem · Reign Pending review1174–1185Effective rule
Recorded relationships
Parents
Amalric I of Jerusalem · ESDocumentedAgnes of Courtenay · ESPending review
Sources for this profile
- Deutsche Nationalbibliothek · GND authority record · Balduin IV., Jerusalem, König
- Encyclopaedia Britannica
Biographical and contextual references in their original language. Sources and methodology.
Evidence for this profile
5 recorded claims · 2 without a claim-specific source. Context references do not by themselves verify every fact.
Dates (2/2 with a precise source)
- BirthDocumented
1161
The authority record gives the birth as 1161. - DeathDocumented
16 March 1185
The authority record gives the death as 1185-03-16.
Family and relationships (1/2 with a precise source)
- FatherDocumented
Amalric I of Jerusalem
The authority record identifies Amalric I of Jerusalem (GND 102419396) as father. - MotherPending review
Agnes of Courtenay
A precise source has not yet been added.
Governments (0/1 with a precise source)
- GovernmentPending review
King · Jerusalem · 1174–1185
A precise source has not yet been added.
Biographical and contextual references (2)
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.
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