Kate Middleton's not the first in her family to hobnob with the Royals! Newly found photo shows three of the Duchess of Cambridge's ancestors at a garden party with the Queen's aunt in 1927 The unearthed photo from 1927 shows The Duchess of Cambridge’s great-grandmother Olive Middleton walking behind Princess Mary in a procession Also in the near 100-year-old picture are Kate’s great-great-great-uncle and aunt, Hugh and Isabella Lupton, at Headingley Cricket Ground in Leeds The Duchess of Cambridge's heritage has been pored over in very close detail and image shows family on her father's side are no strangers to the royals