Duchy of Oels

Duchy of Oleśnica
*Księstwo Oleśnickie* (Polish)
*Herzogtum Oels* (German)
*Olešnické knížectví* (Czech)
Duchy of Oleśnica Księstwo Oleśnickie (Polish); Herzogtum Oels (German); Olešnické knížectví (Czech)
1313–1884
	Flag Coat of arms
	Silesia 1312-1317: Creation of the Duchy of Olésnica (blue, north) for Bolesław in 1313
Status	District duchy of Poland; Silesian duchy; Fief of the Bohemian Crown (1329–1480, 1490–1742); Fief of Hungary (1480–1490); Part of Prussia (from 1742)
Capital	Oleśnica
Historical era	Middle Ages; Early modern period
• Partitioned from Głogów	1313
• Vassalized by Bohemia	1329
• Bierutów split off	1412
• Vassal of Hungary	1480
• Vassal of Bohemia	1490
• Henry of Poděbrady duke	1495
• Silvius Nimrod of Württemberg duke	1649
• Frederick Augustus of Brunswick duke	1792
• Disestablishment	1884
Preceded by	Succeeded by
	Duchy of Głogów
Kingdom of Prussia
Today part of	Poland

The Duchy of Oleśnica (Polish: Księstwo Oleśnickie, Latin: Ducatus Olsnensis) or Duchy of Oels (German: Herzogtum Oels) was one of the duchies of Silesia with its capital in Oleśnica^[1] in Lower Silesia, Poland.^[2] Initially ruled by the Silesian Piasts, it was acquired by the Münsterberg (Ziębice) dukes of the Podiebrad family from 1495 and was inherited by the House of Württemberg in 1649. Conquered by Prussia in 1742, it was enfeoffed to the Welf dukes of Brunswick-Lüneburg from 1792 until its dissolution in 1884.

^ (in Polish and English) Panorama miast, Oleśnica Archived October 13, 2007, at the Wayback Machine Accessed 2008-01-04. "Oleśnica had been an important trade settlement and the capital of a Duchy, undergoing its prime development during the Renaissance period."
^ Zofia Uszyńska, University of Michigan, Poland, Travel Guide Publisher: AGPOL, 1960. Digitized Nov 13, 2006. Accessed 2008-01-04. "Oleśnica used to be the capital of the Duchy of Oleśnica, which was ruled until the end of the 15th c. by Polish dukes of the Piast dynasty."