Hohenzollerns I believe. Victoria, Kaiser Wilehlm, and Tsar Nicholas were all cousins. The love of Victoria's life, Prince Albert, was German. Lord Mountbatten? He changed from 'Prince Louis of Battenberg' to Mountbatten to Anglicize his name.
Saxe-Coburg-Gotha.. the family here is traced from Albert who was Victoria’s husband. Victoria’s mother was also of that household. Victoria’s father was of the house of Hanover. The family’s name was changed because of WWI to Windsor. The Hohenzollern were a Prussian dynasty.