Two venerable households united in the marriage of Prince Charles and Lady Diana: The royal House of Windsor and the Spencer family.
The Spencers are the older family.
Diana's ancestors settled in the sheep farming village called Althorp in 1506; by the end of the 16th century, they had taken roles at the royal court. At the beginning of the 20th century, one of Diana's great-grandfathers was Lord Chamberlain, or head of the household, to Edward VII and George V. Her father was an attendant to George VI and Queen Elizabeth II. She could trace her ancestry to two 17th century English kings, Charles II and James II.