House of Welf

House of Welf (Guelf, Guelph)
Parent house	House of Este (agnatic) Elder House of Welf (cognatic)
Country	Germany, Italy, United Kingdom of Great Britain and Ireland
Founded	8th century
Founder	Welf I, Duke of Bavaria
Final ruler	Ernest Augustus, Duke of Brunswick
Titles	Holy Roman Emperor Emperor of Russia Empress of India King of the Romans King of Great Britain King of Ireland King of Italy King of Burgundy King of Hanover King of the United Kingdom of Great Britain and Ireland Duke of Brunswick-Lüneburg Duke of Brunswick Duke of Bavaria Duke of Saxony Duke of Spoleto Prince of Lüneburg Prince of Brunswick-Wolfenbüttel Count Palatine of the Rhine Margrave of Tuscany Elector of Hanover Lord of Mann Count of Paris
Estate(s)	Brunswick & Hanover
Deposition	1918 (in Germany)
Cadet branches	House of Hanover

The House of Welf (also Guelf or Guelph^[1]) is a European dynasty that has included many German and British monarchs from the 11th to 20th century and Emperor Ivan VI of Russia in the 18th century. The originally Franconian family from the Meuse-Moselle area was closely related to the imperial family of the Carolingians.