It is not known what happened with both Mojmír II and Svatopluk II because they are not mentioned in written sources after 906. In three battles (4–5 July and 9 August 907) near Bratislava, the Magyars routed Bavarian armies. Some historians put this year as the date of the break-up of the Great Moravian Empire, due to the Hungarian conquest; other historians take the date a little bit earlier (to 902).