A memorial cross on the Schönberg above Leutenberg and Ebringen commemorates the battle of Freiburg on 3 August 1644. The cross replaced the ossuary, where the bones of the fallen soldiers were buried thirty years after the battle. The mass grave became a place of pilgrimage, much to the displeasure of the church. Bones were often stolen as they were venerated as relics. The church could not prevent further pilgrimages so Ildefons of Arx ordered the remaining bones to be taken away in 1791, which meant the end of the pilgrimages over the next few decades.