Princess Anne and Queen Camilla conducted a joint engagement on Wednesday, where the Queen asked her sister-in-law to break royal protocol - but Anne had a hilarious response

The two women took part in a rare joint engagement at the University of London, where the Princess Royal presented her sister-in-law with an honorary doctorate

Queen Camilla has been handed an honorary doctorate by her sister-in-law tonight as the pair conducted a rare joint engagement. Camilla, 77, is one of five people who were presented with honours on the University of London’s Foundation Day by the school’s Chancellor, Princess Anne, 74.

Queen Camilla suffered a setback in November as she was forced to back out of numerous royal engagements due to a chest infection, but now that she's back to work, the Queen has been keeping plenty busy—and one member of the Royal Family has stepped up to present her with a touching honor.

Princess Anne and Queen Camilla made a rare public appearance together earlier this month, with one expert claiming the Princess Royal showed her true feelings