William of Holland
Elected King of the Romans against the Hohenstaufen. He died on campaign against the Frisians before fully consolidating his authority.
This complete profile is available in English. Bibliographic titles retain their original language. Links marked ES open the Spanish edition.
Key details
Birth: 1227 Documented
Death: 1256 Documented
Role: King
Dynasty: Gerulfing · ES
Territories: Germany (ES) · Holland (ES)
Recorded relationships
Their titles over time
Follow the changing territories and offices of William of Holland. Each title retains its own status.
Governments in 1255
- Holy Roman Empire (Germany)King of the Romans
View titles and jurisdictions
- Germany · ESKing of the Romans · Effective rule1255–1256
- HollandCount
View titles and jurisdictions
- Holland · ESCount · Effective rule1234–1256
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.
Sources for this profile
- Deutsche Nationalbibliothek · GND authority record · Wilhelm, Heiliges Römisches Reich, König
- Encyclopaedia Britannica
Biographical and contextual references in their original language. Sources and methodology.
Evidence for this profile
7 recorded claims · 5 without a claim-specific source. Context references do not by themselves verify every fact.
Dates (2/2 with a precise source)
- BirthDocumented
1227
The authority record gives the birth as 1227. - DeathDocumented
1256
The authority record gives the death as 1256.
Family and relationships (0/2 with a precise source)
- FatherPending review
Floris IV of Holland
A precise source has not yet been added. - MotherPending review
Matilda of Brabant
A precise source has not yet been added.
Governments (0/3 with a precise source)
- GovernmentPending review
King of the Romans · Germany · 1247–1254
A precise source has not yet been added. - GovernmentPending review
King of the Romans · Germany · 1255–1256
A precise source has not yet been added. - GovernmentPending review
Count · Holland · 1234–1256
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.
