State

Duchy of Prussia

1525–1701 · 16th century · Also known as Ducal Prussia

The Duchy of Prussia was the state created in 1525 when Albert of Brandenburg-Ansbach, the last Grand Master in Prussia, secularised the Teutonic Order's lands and became their hereditary duke under Polish overlordship. It was the first state to adopt Lutheranism officially. Inherited by the electors of Brandenburg in 1618 and freed from Polish suzerainty in 1657, it became the Kingdom of Prussia in 1701.

Duchy of Prussia
Image: Orange Tuesday · Public domain · Wikimedia Commons

Mentioned in 3 profiles

Margraviate of BrandenburgMilitary, Governance, Impact, SummaryState of the Teutonic OrderImpact, SummaryKingdom of PrussiaFoundation, Summary

State page: history, lineage and connections →

Mentioned in 1 state history

Bishopric of Pomesania

See also

Cite this entry
APA
The Epoch Institute. (2026). Duchy of Prussia. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/duchy-of-prussia
MLA
“Duchy of Prussia.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/duchy-of-prussia. Accessed .
Chicago
The Epoch Institute. “Duchy of Prussia.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/duchy-of-prussia.
Harvard
The Epoch Institute (2026) ‘Duchy of Prussia’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/duchy-of-prussia (Accessed: ).

Last reviewed October 2026Random entry ↻