Świny Castle - formerly a gord, as a stronghold existed in its location already in the fifth century - securing the Lubawecki mountain pass, the site was recorded in Cosmas' documents from 1108, where the gord is recorded as Suini in Poloniae. Possibly, soon after, the gord had been expanded into a military stronghold, at which time it was the seat of the castellans. The castle was mentioned in Pope Adrian IV's Papal bull.
By the 13th century, it had prominent owners including Tader in 1230, Jaksa in 1242, and Piotr of Świn in 1248. In the 1270s, Bolko I the Strict's decision led to the loss of its status as a castellany to the newer Bolków Castle. By 1272, the castle had transitioned to knightly ownership, with "dominus Jan de Swin" mentioned in a document from Bolesław the Tall, Duke of Wrocław.
Wikipedia https://en.wikipedia.org/wiki/Świny_Castle
Address (Unnamed Road), 59-420, Poland
Coordinates 50°56'19.549" N 16°6'43.972" E