This region was first inhabited by the Lygii and the Silingii, and Frederick Barbarossa appointed its first dukes, Boleslaw the Long and Henry the Bearded, who defeated the Tatars at Wahlstatt in 1241.  
This region was first inhabited by the Lygii and the Silingii, and Frederick Barbarossa appointed its first dukes, Boleslaw the Long and Henry the Bearded, who defeated the Tatars at Wahlstatt in 1241.  The most famous ruling family of this region were the Piasts, who somehow managed to retain rule as this area passed from Bohemia to Poland and then to Hungary in 1469.  Later conquered by the Hapsburgs, it was the seizure of this territory by Prussia that began the War of Austrian Succession.  FTP, identify this European territory famously ceded by Maria Theresa to Frederick II of Prussia.
This region was first inhabited by the Lygii and the Silingii, and Frederick Barbarossa appointed its first dukes, Boleslaw the Long and Henry the Bearded, who defeated the Tatars at Wahlstatt in 1241.  
Silesia