The gold 12-ducat medal glorifying the military victories of Władysław IV Vasa was struck in in Gdańsk in 1637 on the commission of the City Council. This is another medal designed by Jan Höhn the Elder, a student of Sebastian Dadler. The obverse of the medal shows Hercules bringing Cerberus up from Hades. It is one of the first attempts at identifying a Polish ruler with a mythological hero. Additionally, each of the heads of the beast that guarded the underworld can be interpreted as representing one of Poland’s adversaries: Russia, Sweden and Turkey. The allegory itself was taken from the widely distributed 16th- and 17th-century iconology; it was probably the composition from the fifth engraving from the The Labours of Hercules series by Heinrich Aldegrever, dating from 1550. The reverse of the medal contains a long Latin inscription glorifying Władysław IV—by name—as “the Hercules who brings peace". The medal is an example of using mythological motifs in Protestant art. The same obverse was used again in the same year on the Gdańsk medal that commemorated the King’s marriage to Cecilia Renata of Austria.