Duchy of Jawor
The settlement of Gryfów Śląski arose from a castle built by the Piast Duke Bolesław I the Tall of Silesia near the border with Upper Lusatia. It received town privileges by Polish Duke Bolesław II the Bald in 1242. The ruins of the medieval Gryf Castle, a possession of the House of Schaffgotsch from 1400 on, are still visible south of the town. In 1274 Gryfów became part of the Silesian Duchy of Jawor, which finally was incorporated by the Kingdom of Bohemia in 1392. During the period of the "Ostsiedlung" from the end of the 12th century onwards the region was settled by Germans.