In honor of the royal baby's imminent birth, here's a look at where Prince William and Kate Middleton fit into Queen Elizabeth II's royal family tree
Prince Charles, the Late Princess Diana, and Camilla Parker Bowles
Queen Elizabeth II's eldest child, Charles, Prince of Wales, was born Nov. 14, 1948, and is the longest-serving heir apparent in British history. In 1981, he married Lady Diana Spencer, with whom he had two sons, Prince William and Prince Harry. The couple divorced in 1996. Charles has since remarried; he and his former mistress, Camilla Parker Bowles, were wed in 2005.
PHOTOS: William and Kate's Romance
PHOTOS: Diana's Pregnancy
PHOTOS: The Duke and Duchess as kids!
Credit: Antony Jones/UK Press via Getty Images; WireImage.com; Samir Hussein/Getty Images