The treasure was owned by Stanisław Piwo of the Prawdzic coat of arms, the Plock Chamberlain, and his wife Zofia Magdalena, daughter of Jan Loki of the Rogala coat of arms. The treasure includes, among others, bracelets, chains, rings, a pendant with a figure of Fortune, buttons for a żupan, a belt and pearls, as well as a lavabo, i.e. a bowl with a jug, a tankard, candlesticks, candle-holders and spoons. These wares mostly come from Toruń and Brodnica and Augsburg. Also on display is the Nieszawa Treasure found in 1962 while conducting earthworks on the Nieszawa Market Square. It includes five spoons, a fragment of a belt, a dagger scabbard and a fragment of a vessel of undetermined function.