The Princess Royal is famed for her hard work and no-nonsense approach to life.
Princess Anne has continued to keep a busy schedule of engagements which sees her travel widely across the UK and overseas.
She is one of the busiest royals and is involved with more than 300 charities, organisations and military regiments.
The Queen and Duke of Edinburgh's only daughter is regularly the Royal Family member carrying out the most public engagements.
Princess Anne was born at Clarence House on 15 August 1950 and is the younger sister to the Prince of Wales.
She is the mother of silver medal-winning Olympic horsewoman Zara Tindall and Peter Phillips.
In 2020, to mark the Princess Royal's 70th birthday she was promoted in the Royal Air Force and British Army.
Princess Anne received promotions to the rank of General in the Army and to Air Chief Marshal in the RAF.
It brought the Princess Royal's Army and RAF ranks in line with the rank of Admiral she holds within the Royal Navy, following the long-standing convention of military promotions for members of the Royal Family.
Here are more of Anne's other military titles and patronages:
Battle of the Atlantic Memorial – Patron
City of Edinburgh Universities Officers Training Corps – Royal Honorary Colonel
First Aid Nursing Yeomanry (Princess Royal's Volunteer Corps) – Commandant-in-Chief
HMNB Portsmouth – Commodore-in-Chief
HMS Albion – Sponsor
HMS Nelson – Honorary Life Member
HMS Talent – Sponsor
Hornet Services Sailing Club – Patron
Intelligence Corps – Colonel-in-Chief
Marine Society & Sea Cadets – Admiral of the Sea Cadet Corps
Memorial to the Women of World War II – Vice Patron
National Museum of The Royal Navy – Patron
RAF Brize Norton – Honorary Air Commodore
Royal Army Service Corps and Royal Corps of Transport Association – Honorary Life Member
The Royal British Legion Women's Section – Life Member
Royal Naval Equestrian Association – Eventing – Patron
Royal Naval Sailing Association – Member
Special Boat Service Association – Royal Patron
Special Forces Club – Patron and Honorary Member
The Association of Royal Navy Officers – Member
The Association of Wrens – Patron
Watch: Princess Anne joined HMS Albion's Platinum Jubilee celebrations
The Blue Seal Club – Member
The Blues and Royals (Royal Horse Guards and 1st Dragoons) – Colonel
The Blues and Royals Association – President
The Honourable Artillery Company – Member
The King's Royal Hussars – Colonel-in-Chief
The Naval Club & RNVR Officers Association – Honorary Life Member
The Not Forgotten Association – Patron
The Not Forgotten Association Northern Ireland – Patron
The Royal Army Veterinary Corps – Colonel-in-Chief
The Royal Corps of Signals – Colonel-in-Chief
The Royal Edinburgh Military Tattoo – Patron
The Royal Logistic Corps – Colonel-in-Chief
The Royal Logistic Corps Association – Patron
The Royal Logistic Corps Museum – Patron
The Royal Navy and Royal Marines Charity – Patron
The Royal Navy and Royal Marines Equestrian Association – Life Member
The Royal Scots (The Royal Regiment) Regimental Association – Patron
The Royal Signals Association – Patron
The Royal Signals Institution – Patron
The Royal Signals Museum of Army Communications – Patron
The Queen's Gurkha Signals and The Gurkha Transport Regiment – Affiliated Colonel-in-Chief
The Worcestershire and Sherwood Foresters Regimental Association – Patron
Women in the Royal Navy – Admiral and Vice Admiral Chief Commandant
Women's Royal Naval Service Benevolent Trust (WRNS Benevolent Trust) – Patron
University of London Air Squadron – Honorary Air Commodore
University of London Officers' Training Corps – Royal Honorary Colonel
Royal Australian Corps of Signals – Colonel-in-Chief
The Royal Australian Corps of Transport – Colonel-in-Chief
8th Canadian Hussars (Princess Louise's) – Colonel-in-Chief
Camp Hill Veterans' Services – Patron
Canadian Fleet Pacific – Commodore-in-Chief
Canadian Forces Communications and Electronics Branch – Colonel-in-Chief
The Grey and Simcoe Foresters – Colonel-in-Chief
The Royal Canadian Hussars – Colonel-in-Chief
The Royal Canadian Medical Service (RCMS) – Colonel-in-Chief
The Royal Newfoundland Regiment – Colonel-in-Chief
The Royal Regina Rifles – Colonel-in-Chief
Royal New Zealand Corps of Signals – Colonel-in-Chief
Royal New Zealand Nursing Corps – Colonel-in-Chief