The House of Wittelsbach (German: Haus Wittelsbach) is a German dynasty, with branches that have ruled over territories including Bavaria, the Palatinate, Holland and Zeeland, Sweden (with Finland), Denmark, 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, and the family had three of its members elected emperors and kings of the Holy Roman Empire. They ruled over the Kingdom of Bavaria which was created in 1805 and continued to exist until 1918.