. . "1519" . . "The Piotrk\u00F3w Trybunalski Royal Castle is a Gothic-Renaissance structure in Piotrk\u00F3w Trybunalski, Poland. It was built in the form of a residential tower in the 16th century and was transformed into a museum open to the public in 1919."@en . "Piotrk\u00F3w Trybunalski Royal Castle"@en . "1511" .