Another account, from the Croatian redaction of the 13th century Chronicle of the Priest of Duklja, says that in 1089, desiring to heal the East-West Schism Pope Urban II asked Zvonimir, his strongest Balkan ally, to assist Alexios I Komnenos against the Seljuks. Zvonimir convened the Sabor at a place called "seven churches in Kosovo", which had been identified by the archaeologists as Biskupija near Knin. His intention was to mobilize the army on behalf of the pope and the emperor, but the nobility refused him and a rebellion erupted, leading to Zvonimir's assassination at the hands of his own soldiers.