 However, on Easter 1059 Nicholas issued the papal bull "In nomine Domini" establishing the cardinals as the sole electors of the pope, detrimental to the interests of the emperor and the temporal empire.When Pope Alexander II was elected on 30 September 1061, Agnes refused to acknowledge him and had Antipope Honorius II elected; a schism that did not end until Pentecost 1064.The empress' candidate could not prevail against the Roman Curia; in consequence, Agnes retired from politics, leaving the regency to her confidant Bishop Henry II of Augsburg.