Princess Anne has been named the most difficult member of the royal family, beating Prince Charles and Queen Elizabeth.
The 70-year-old princess – who performs her official duties on behalf of the queen – performed 148 official engagements last year and spent 145 days performing public duties.
According to the analysis, Prince Charles came in second, while the 94-year-old queen was the third toughest monarch when she performed 136 engagements in 130 days.
Anne is the second child and only daughter of Queen Elizabeth II and Prince Philip. She is the 14th successor to the British throne and has been Princess Royal since 1987.
According to reports, royal engagements are recorded in official records called the Royals in the Court Circular.
“For many generations, the royal family’s dedication to serving the crown has been their greatest legacy,” said Darren Best, a spokesman for SavoyStart.com.
Princess Ann impressed the Queen because her greatness in service has always been an example to all working kings.