Royal fans might be surprised to hear that Queen Elizabeth once held a seance of sorts at Sandringham House , but she reportedly called in a local rector after some ghostly stories worried the staff. In his new biography of Queen Elizabeth , author Robert Hardman wrote that Queen Elizabeth stepped in after reports of an “unhappy spiritual presence” in the royal residence. Princess Diana died in 1997, and in Elizabeth II: In Private. In Public. Her Story , Hardman shared a story about the late Queen’s friend, Prue Penn, staying at Sandringham “not long after” Diana’s tragic death. “Some of the housemaids had reported sensing a mysterious and unhappy spiritual presence in one of the rooms,” the royal biographer wrote. “There were even mutterings about having an exorcism.” Article continues below Queen Elizabeth called in the rector to investigate the happenings at Sandringham after Diana's death. (Image credit: Getty Images) Princess Diana and Queen Elizabeth are pictured in 1987.…