duchy · Poland, Lithuania and Russia

Duchy of Rawa

1313 CE – 1462 CE (approx.) · capital Rawa Mazowiecka

A Masovian duchy in central Poland, one of the last Piast lands, incorporated into the Polish Crown in 1462.

Origins

After Boleslaw II of Masovia died in 1313, his lands were divided among his sons, and Siemowit II received the southern part around Rawa. Over the next 150 years Rawa was repeatedly joined to and separated from the other Masovian duchies as the family's branches divided their inheritance.

Rule and society

Rawa was a modest farming land with a brick castle built under Casimir III's influence in the 14th century. Its dukes were vassals of the Polish Crown from 1351. Siemowit III reunited most of Masovia in the 1370s and issued laws for it, but it was divided again among his heirs, and Rawa was ruled by the Siemowit and Wladyslaw lines of Plock.

Decline and legacy

When Siemowit VI and Wladyslaw II, the last dukes of the line, died in 1462, King Casimir IV took Rawa and Gostynin into the Kingdom of Poland (1385-1569). The land became the Rawa Voivodeship.

Lineage

Duchy of Masovia 1138 CE – 1526 CEDuchy of RawaKingdom of Poland (1385-1569) 1385 CE – 1569 CE

More states of Poland, Lithuania and Russia →

Cite this page
APA
The Epoch Institute. (2026). Duchy of Rawa. In The Epoch Institute States Register. https://the-epoch-institute.org/state/duchy-of-rawa
MLA
“Duchy of Rawa.” The Epoch Institute States Register, The Epoch Institute, 2026, https://the-epoch-institute.org/state/duchy-of-rawa. Accessed .
Chicago
The Epoch Institute. “Duchy of Rawa.” The Epoch Institute States Register. 2026. https://the-epoch-institute.org/state/duchy-of-rawa.
Harvard
The Epoch Institute (2026) ‘Duchy of Rawa’, The Epoch Institute States Register. Available at: https://the-epoch-institute.org/state/duchy-of-rawa (Accessed: ).

Last reviewed October 2026Random state ↻