Duchy of Oels
…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 in Lower Silesia, Poland. Initially ruled by the Silesian Piasts, it was acquired by the Münsterberg (Ziębice) dukes of the Podiebrad family from 1495…