Patron of knight orders; soldiers, horsemen, rifle and merchant guilds, miners, cooper, saddlers, blacksmiths, scouts, artists, hikers, hospitals, infirmaries, farmers, horses; the cattle, weather; Patron of the Diocese of Limburg; for belief; in battles of all kinds, threats of war; against fever, abuse, temptation.
He is represented as a knight with and without a horse, with a dragon pierced by a sword or lance.
His feast day is April 23.