Princess Victor of Hohenlohe-Langenburg (Laura Williamina Seymour; 17 December 1832 – 13 February 1912) was a British-born aristocrat whose marriage to a German prince naturalised in England made her a kinswoman of the British Royal Family and a member of the royal court.
Laura Williamina Seymour was a daughter of Admiral Sir George Seymour and his wife, Georgiana Berkeley, a granddaughter of the 4th Earl of Berkeley and a great-granddaughter of the 2nd Duke of Richmond. Paternally, she descended in unbroken male line from the Seymours (originally, St. Maur) who belonged to the gentry of the 12th century, acquired considerable landed wealth by the marriage of Sir Roger de St. Maur to the baronial co-heiress Cecily Berkeley, and were ennobled in 1536 as Viscounts Beauchamp. Laura's direct ancestor, Edward Seymour, 1st Duke of Somerset, was the eldest brother of Henry VIII's queen consort, Jane Seymour, and had himself declared Lord Protector of England during the minority of their son, King Edward VI. The Dukedom of Somerset and the Marquessate of Hertford, eventually devolved upon her branch of the Seymour family. Laura Seymour descended three times from Charles II of England and one time from James II of England by their mistresses (although severed from the Royal Family by bars sinister). Furthermore, she descended from Charles I Louis, Elector Palatine and from Maurice, Prince of Orange also by mistresses. And she was an eighth cousin of her husband's, with whom she shared multiple descents from King Frederick II of Denmark.