The article 'In the City of Saint Anthony' in the magazine 'Świat', 1931, no. 30, pp. 4-5 (public domain, reprinted after the Mazovian Cyfor Library) containing a description of Padua, mentions two monuments to Polish kings, Stefan Batory and Jan III Sobieski, located on Prato della Valle. The article also includes photographs of the monuments. Both statues were commissioned by King Stanislaus August Poniatowski in 1789 and were created by Giovanni Ferrari.