 Both claimed the Saxon electoral privilege for themselves, but the Golden Bull of 1356 accepted only Wittenberg's claim, with Lauenburg nevertheless continuing to maintain its claim.In 1422, when the Saxon electoral line of the Ascanians became extinct, the Ascanian Eric V of Saxe-Lauenburg tried to reunite the Saxon duchies.However, Sigismund, King of the Romans, had already granted Margrave Frederick IV the Warlike of Meissen (House of Wettin) an expectancy of the Saxon electorate in order to remunerate his military support.