John of Nepomuk was a 14th-century Bohemian clergyman who served as the vicar general of Saint Giles Cathedral. Born in Pomuk, he traveled to Padua to study canon law before returning to his homeland. He remained a loyal supporter of Archbishop Jan of Jenštejn during a period of conflict with King Wenceslaus IV. This loyalty ultimately led to his execution, as the king ordered him to be thrown into the Vltava river, resulting in his death on March 20, 1393.