Guglielmo Gonzaga
He consolidated Gonzaga power and secured ducal rank for Montferrat. His musical patronage strengthened the cultural importance of the Mantuan court.
This complete profile is available in English. Bibliographic titles retain their original language. Links marked ES open the Spanish edition.
Key details
Birth: 24 April 1538 Documented
Death: 14 August 1587 Documented
Role: Duke
Dynasty: Gonzaga · ES
Territories: Mantua (ES) · Montferrat (ES)
Recorded relationships
Their titles over time
Follow the changing territories and offices of Guglielmo Gonzaga. Each title retains its own status.
Governments in 1550
- MantuaDuke
View titles and jurisdictions
- Mantua · ESDuke · Effective rule1550–1587
- MontferratMarquess
View titles and jurisdictions
- Montferrat · ESMarquess · Effective rule1550–1573
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
- Hrvatska enciklopedija · Gonzaga
- Deutsche Nationalbibliothek · GND authority record · Guglielmo, Mantua, Herzog
- Treccani · Dizionario Biografico degli Italiani
Biographical and contextual references in their original language. Sources and methodology.
Evidence for this profile
8 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
24 April 1538
The authority record gives the birth as 1538-04-24. - DeathDocumented
14 August 1587
The authority record gives the death as 1587-08-14.
Family and relationships (0/3 with a precise source)
- FatherPending review
Federico II Gonzaga
A precise source has not yet been added. - MotherPending review
Margaret Palaiologina
A precise source has not yet been added. - Marriage or partnershipPending review
Eleanor of Austria, Duchess of Mantua
A precise source has not yet been added.
Governments (0/3 with a precise source)
- GovernmentPending review
Duke · Mantua · 1550–1587
A precise source has not yet been added. - GovernmentPending review
Marquess · Montferrat · 1550–1573
A precise source has not yet been added. - GovernmentPending review
Duke · Montferrat · 1574–1587
A precise source has not yet been added.
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.