Queen Camilla’s polite attempt at breaking the royal protocol was blocked by her sister-in-law, Princess Anne, during a royal engagement this week. The pair attended a joint engagement at the University of London’s Foundation Day Wednesday.

Britain's Queen Camilla pulled out of one of the royals' most high-profile annual events on Friday night as she continues to experience the effects of a chest infection that she suffered earlier this month,

Queen Camilla donned a ceremonial robe as she received an honorary doctorate at the University of London Nov. 20, given to her by none other than her sister-in-law, Princess Anne. Camilla is being recognized for her work with literacy and literature.