Is there a royal connection between Camilla's family and the royal family?

Yes. Camilla is the great-granddaughter of Alice Keppel,who was King Edward VII's last mistress.Camilla,through George Keppel,Alice's husband, on Camilla's side and through the late Queen Mother on Charles' side, Camilla and Charles are ninth cousins once removed.And through King Charles II,Camilla is also related to Diana,Princess of Wales.