A castle (cum castro) in Żywiec was first mentioned in 1467, as destroyed by an army, under Casimir IV Jagiellon's command against the House of Komorowski, with the Korczak Coat of Arms, recorded by Jan Długosz. However it is not certain whether it denoted the castle in the town or a fortifications on a nearby Grójec hill. Archaeological scrutiny dates the origins of the castle in the first half of the 15th century. A later expansion was constructed in 1567 by the House of Komorowski. Under the ownership and will of Jan Spytek Komorowski, during the castle's expansion a Renaissance style courtyard was built, which is still untouched in its current form.
Since 2005, the Old Castle in Żywiec hosts the City Museum in Żywiec. The Old Castle's permanent exhibition includes an ethnographical exhibition - which completes the Wooden Architecture Trail in the Silesian Voivodeship, in Poland.
Żywiec's Old Castle is encompassed by a 260,000 square metre landscape park, which was established initially in the 17th century.
References:Visby Cathedral (also known as St. Mary’s Church) is the only survived medieval church in Visby. It was originally built for German merchants and inaugurated in 1225. Around the year 1350 the church was enlarged and converted into a basilica. The two-storey magazine was also added then above the nave as a warehouse for merchants.
Following the Reformation, the church was transformed into a parish church for the town of Visby. All other churches were abandoned. Shortly after the Reformation, in 1572, Gotland was made into its own Diocese, and the church designated its cathedral.
There is not much left of the original interior. The font is made of local red marble in the 13th century. The pulpit was made in Lübeck in 1684. There are 400 graves under the church floor.