Wenceslaus I of Bohemia
The two sources reporting the location as Stadlau also published a list of wedding guests. Present at the wedding were King Wenceslaus I of Bohemia and Prince Béla IV of Hungary, the Archbishop of Salzburg as well as the bishops of Passau, Bamberg, Freising and Seckau. The secular princes were represented by Margrave Přemysl of Moravia, Duke Albert of Saxony, Duke Carinthia, the Carinthian duke Bernhard von Spanheim, and the Landgrave of Thuringia. This guest list suggests the importance of the Babenberg dukes within the Holy Roman Empire.