According to the Golden Bull of 1356, the Saxe–Wittenberg lands up the Elbe formed an Electorate, which in 1423 merged with Meissen under the Wettin dynasty and headed the Upper Saxon Circle. The Wettins acquired the Lusatia region by the 1635 Peace of Prague and finally were elevated to Kings of Saxony in 1806. Thus the citizens of the present-day German state of Saxony today are simply known as Saxons.