Koppány proposed to Géza's widow, Sarolt, in accordance with the pagan custom of levirate marriage. He also announced his claim to the throne. Although it is not impossible that Koppány had already been baptized, in 972, most of his supporters were pagans, opponents of the Christianity represented by Stephen and his predominantly German retinue. A charter of 1002 for the Pannonhalma Archabbey writes of a war between "the Germans and the Hungarians" when referring to the armed conflicts between Stephen and Koppány. Even so, Györffy says that "Oszlar" ("Alan"), "Besenyő" ("Pecheneg"), "Kér" and other place names, referring to ethnic groups or Hungarian tribes in Transdanubia around the supposed borders of Koppány's duchy, suggest that significant auxiliary units and groups of Hungarian warriorswho had been settled there by Grand Prince Gézafought in Stephen's army.