The Tree of Europe · Person

Conrad IV of Germany

He inherited the Hohenstaufen claims in Germany and Sicily amid the struggle with the papacy. His death left Conrad, known as Conradin, as heir to a threatened cause.

1228 – 1254KingHohenstaufen · ES

Explore this family · Spanish Atlas Back to people

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: 1228 Documented

Death: 1254 Documented

Role: King

Dynasty: Hohenstaufen · ES

Territories: Germany (ES) · Sicily (ES) · Jerusalem (ES) · Swabia (ES)

Recorded governments and reigns

King of the Romans · Germany · Reign Pending review1237–1250Co-rulerElected or crowned during the predecessor’s lifetime; authority was not exclusive.

King of the Romans · Germany · Reign Pending review1251–1254Effective rule

King · Sicily · Reign Pending review1250–1254Effective rule

King · Jerusalem · Reign Pending review1228–1254Titular

Duke · Swabia · Duchy Documented1235–1254Effective ruleStaufen ducal jurisdiction; cities, lordships and bishoprics retain their own rights.

Family network

Recorded relationships

Parents

Frederick II of the Holy Roman EmpirePending reviewIsabella II of Jerusalem · ESPending review

Partners

Elizabeth of Bavaria · ESDocumented

Children

Conradin of Hohenstaufen

Crowns and unions

Their titles over time

Follow the changing territories and offices of Conrad IV of Germany. Each title retains its own status.

Period

Governments in 1250

Holy Roman Empire (Germany)King of the Romans
View titles and jurisdictions
- Germany · ESKing of the Romans · Co-ruler1237–1250 · Elected or crowned during the predecessor’s lifetime; authority was not exclusive.
SicilyKing
View titles and jurisdictions
- Sicily · ESKing · Effective rule1250–1254
SwabiaDuke
View titles and jurisdictions
- Swabia · ESDuke · Effective rule1235–1254 · Staufen ducal jurisdiction; cities, lordships and bishoprics retain their own rights.

Nominal and disputed titles (1)

Jerusalem · ESKing · Titular1228–1254

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

10 recorded claims · 6 without a claim-specific source. Context references do not by themselves verify every fact.

Dates (2/2 with a precise source)

BirthDocumented
1228
The authority record gives the birth as 1228.
Deutsche Nationalbibliothek · GND · Konrad IV., Heiliges Römisches Reich, König · Vital data: birth date
Reviewed on 2026-10-17 by El Árbol de Europa ·
DeathDocumented
1254
The authority record gives the death as 1254.
Deutsche Nationalbibliothek · GND · Konrad IV., Heiliges Römisches Reich, König · Vital data: death date
Reviewed on 2026-10-17 by El Árbol de Europa ·

Family and relationships (1/3 with a precise source)

FatherPending review
Frederick II of the Holy Roman Empire
A precise source has not yet been added.
No individual review recorded ·
MotherPending review
Isabella II of Jerusalem
A precise source has not yet been added.
No individual review recorded ·
Marriage or partnershipDocumented
Elizabeth of Bavaria
The authority record identifies Elizabeth of Bavaria (GND 133576515) as spouse.
Deutsche Nationalbibliothek · GND · Konrad IV., Heiliges Römisches Reich, König · Relationships: spouse → GND 133576515
Reviewed on 2026-10-17 by El Árbol de Europa ·

Governments (1/5 with a precise source)

GovernmentPending review
King of the Romans · Germany · 1237–1250
A precise source has not yet been added.
No individual review recorded ·
GovernmentPending review
King of the Romans · Germany · 1251–1254
A precise source has not yet been added.
No individual review recorded ·
GovernmentPending review
King · Sicily · 1250–1254
A precise source has not yet been added.
No individual review recorded ·
GovernmentPending review
King · Jerusalem · 1228–1254
A precise source has not yet been added.
No individual review recorded ·
GovernmentDocumented
Duke · Swabia · 1235–1254
Staufen ducal jurisdiction; cities, lordships and bishoprics retain their own rights.
Universidad de Friburgo · Stälin, cronología de Suabia · Frederick II 1212–1216, Henry VII 1217–1235, Conrad IV 1235–1254, Conradin 1254–1268.
Reviewed on 2026-10-08 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.