. . . "Gniew Castle is a former castle of the Teutonic Order, built after 1290. It was given to Duke Jan de Jani of the Clan of Ostoja, the voivode of Pomerania by the King and has been expanded and rebuilt several times since. The castle has been restored in the late 20th century."@en . . . . "Gniew Castle is a former castle of the Teutonic Order, built after 1290. It was given to Duke Jan de Jani of the Clan of Ostoja, the voivode of Pomerania by the King and has been expanded and rebuilt several times since. The castle has been restored in the late 20th century."@en . . "Gniew Castle"@en .