Electorate of Cologne
The House of Wittelsbach () is the Royal Bavarian dynasty from Germany, with branches that have ruled over territories including Bavaria, the Palatinate, Holland and Zeeland, Sweden (with Denmark and Norway), Hungary (with Romania), Bohemia, the Electorate of Cologne and other prince-bishoprics, and Greece. Their ancestral lands of the Palatinate and Bavaria were Prince-electorates, as well as the Archbishopric-Electorate of Cologne (where Wittelsbach princes ruled over centuries), and the family had three of its members elected emperors and kings of the Holy Roman Empire. Their Kingdom of Bavaria was created in 1805 and continued to exist until 1918.