 The square adjacent to the church was the site in 1268 of the execution of Conradin, the last Hohenstaufen heir to the throne of the kingdom of Naples, at the hands of Charles I of Anjou, thus beginning the Angevin reign of the kingdom.Conrad's mother, Elisabeth of Bavaria, founded the church for the good of the souls of her young son and his companion, Frederick of Baden as well as a resting place for their remains, where they remain today.A statue was erected to Conrad's memory, commissioned by then crown-prince, Maximilian II of Bavaria, designed by the Neoclassic sculptor Thorvaldsen, and completed by his pupil Schopf in 1847.