On the feast of the Annunciation 1384, the local lord of Seefeld in the Tyrol, Knight Oswald Milser, arrived at Mass at the parish church of St. Oswald in full armour with a substantial retinue. He commanded the priest to give him not the ordinary small host given to the laity but the large priest's host. The pastor, Joachim Patscheider, refused; Milser drew his sword. The priest, intimidated, complied.
As Milser received the larger host on his tongue, the marble floor beneath his feet softened like wax and he sank to his knees in the stone. He grasped the altar, which crumbled at his touch. Terrified, he asked the priest to take the host from him; the host had turned crimson with blood. Milser repented publicly, retired from his lordship, lived four further years in Stams Abbey, and died as a humble lay brother.
The host, the bloodstained corporal, and the indentation in the marble floor where Milser sank — the 'Milser-Stein' — are all preserved at Seefeld. Pilgrimages began immediately; the church became one of the great Austrian pilgrimages of the late Middle Ages and remains an active shrine.