Coins minted by this ruler were the first to include the Latin phrase "lancea regis" and depicted a spear with a flag. This ruler's administrative reforms included the creation of castle-based counties led by ispáns. According to one account, one of this ruler's body parts was posthumously stolen by a cleric named Mercurius as it was found to have not decayed after his exhumation. After he was succeeded by his nephew Peter the Venetian, this ruler's wife Giselle of Bavaria was imprisoned. Hartvic's chronicle of this ruler describes how his right hand became a relic. This ruler defeated his cousin Koppány and his pagan supporters after the death of his father Géza, who led the Árpáds. This ruler's coronation by Pope Sylvester II ("the second") was said to have occurred at the turn of the millennium. For 10 points, name this saint, the first king of Hungary. ■END■