The King is pleased to grant the new Aga Khan the title “His Highness”

Published 10/02/2025

The tradition of the title being accorded by the Monarch to the Ismaili Imams dates back to the first Aga Khan.

To mark the accession of Prince Rahim Al-Hussaini Aga Khan as the fiftieth hereditary Imam of the Shi’a Ismaili Muslim community, and in accordance with long-standing tradition, it has pleased The King to grant the new Aga Khan the title ‘His Highness’.

Background:
This title was initially granted to Aga Khan I in recognition of his role as spiritual head of the Ismaili community and as a religious leader of global importance.  Many of the Ismaili community also reside in Commonwealth countries.

This tradition continues and now also recognises the work of Ismaili Imams in the fields of interfaith dialogue, education, healthcare, and other forms of socio-economic development which make a hugely positive contribution to communities worldwide.

The title ‘His Highness’ has been accorded by the British Monarch to the Ismaili Imams dating back to the first Aga Khan, who was resident in India and has continued to this day, being reconfirmed after each succession.

Records show that the title ‘His Highness’ was accorded to Aga Khan III by Queen Victoria in 1886 when he was just 9 years old, the year after his accession to the role of Imam.  The title of ‘His Highness’ was accorded to Aga Khan IV by Queen Elizabeth II in July 1957 approximately a fortnight after he succeeded his grandfather.

It is understood that the designation of the title ‘His Highness’ to the Imam of the Ismailis by the British Monarchs is a reflection of the strong relationship which has existed over time between the families, the service to the Crown which the Imams have undertaken over the years (initially in Afghanistan and India in particular) and importantly the recognition of the leadership position of the Imam in respect of the Ismaili population which has been and continues to be present in many Commonwealth countries.

The Late Aga Khan IV had a warm relationship at a personal level with Her Late Majesty and His Majesty King Charles, as well as institutionally with the British Government in diplomacy and international statesmanship. This has been recognised for example through the events hosted by Her Late Majesty and the UK Government to mark His Late Highness’ Golden and Diamond Jubilees and the award of a Knighthood.

His Late Highness Aga Khan IV was the Founding Patron of the King’s Trust.

His Late Highness Aga Khan IV and all his children, including Prince Rahim Aga Khan V, and his children, are British citizens and have close affiliations to the UK. Prince Rahim’s mother is British as was his late paternal grandmother.

Related content

A speech by The King at the CHOGM Opening Ceremony in St John's Antigua

We cannot change the actions of those who came before us. We can, however, learn from the past.

03 November 2026

A speech by The King to mark the 60th anniversary of the Aberfan disaster

Hearts, far from this valley, will ache with yours. Tears, from those who remember, and those who at the time were not yet born, will be shed with yours.

21 October 2026

A Speech by The King at the opening of the Senedd in Cardiff

The character and identity of Wales have always been built from the strength of its places and the relationships of trust, service and neighbourliness found within them – that...

15 October 2026

A message from The King following devastating wildfires across the UK and Europe

As the work of recovery still goes on for many, the compassion and fortitude of the communities affected shine through.

16 September 2026

Remarks by His Majesty The King at the Bayeux Tapestry exhibition, British Museum

The King’s speech at the opening of the Bayeux Tapestry exhibition.

02 September 2026

A message from The King following the demise of King Harald V of Norway

It is with the most profound sadness that my wife and I have learned of the death of my dear cousin, King Harald V of Norway. For thirty-five years, King Harald served his...

28 August 2026

A message from The King to all those affected by the tragedy on the Nepal-China border.

My wife and I are heartbroken to hear of the devastating flooding that has struck the Nepal-China border. Many in the United Kingdom have strong, deep and personal ties to...

27 August 2026
Press release 26 August 2026

Announcement: The King and Queen's Autumn Tour

Read more

A message from The King ahead of the Closing Ceremony of the Glasgow 2026 Commonwealth Games

The Games have served as a stage for outstanding athletic excellence, a joyful celebration of all that unites our Commonwealth nations and a powerful reminder of sport’s...

02 August 2026

A message from The King to open the Glasgow 2026 Commonwealth Games

We celebrate the dedication and talent of every athlete and team. Your perseverance inspires us, and we eagerly anticipate your achievements in the coming days.

24 July 2026

A message from The King to the President of Guyana, following the capsizing of the MV Barima

Dear Mr. President, My wife and I were most profoundly shocked and saddened to learn of the appallingly tragic loss of life following the capsizing of the M.V. Barima. I...

24 July 2026

A speech by The King in Tynwald, Isle of Man

On an island such as this, one never feels far from the marvellous landscapes and the sea that surrounds us, from the heights of Snaefell to the wooded glens and beautiful...

14 July 2026

The King's remarks at the Gurkha Artillery Formation Parade, Larkhill

This occasion marks not simply the union of two distinguished institutions, but a powerful reaffirmation of the enduring and deeply valued relationship between the United...

04 June 2026

Remarks by The King at 'A King's Trust Celebration' at the Royal Albert Hall

You'll all make a huge difference to this country and many others.

18 May 2026
News

The King visits Bermuda

01 May 2026
The King in Bermuda

A speech by His Majesty The King at the White House State Dinner, Washington

Tonight, we are here to renew an indispensable alliance which has long been a cornerstone of prosperity and security for both British and American citizens. Our people have...

29 April 2026
News

Royal Maundy 2026

02 April 2026
Royal Maundy 2026
News

Commonwealth Day 2026

12 March 2026
Members of The Royal Family attend The Queen Elizabeth Prizes for Education