Former US State Secretary John Kerry, left, with the Aga Khan at the European Council in Brussels on October 5, 2016. AFP
Prince Karim Aga Khan arrives at Belem Palace in Lisbon on July 9, 2018. The Aga Khan, imam of the Ismaili Muslims, died in Lisbon on February 4, aged 88. AFP
Sheikh Mohammed Bin Rashid Al Maktoum, Vice President and Prime Minister of United Arab Emirates and Ruler of Dubai with His Highness Aga Khan view the scale model of Khor Dubai during launching ceremony of Khor Dubai Cultural Foundation. Paulo Vecina / The National
The Aga Khan at the inauguration of the restored 16th century Humayun's Tomb in New Delhi, India. AP
Britain's Prince Charles is greeted by the Aga Khan in London on November 18, 2010. Reuters
The Aga Khan leaves after the inauguration of the restored 16th century Humayun's Tomb in New Delhi on Wednesday, September 18, 2013. AP
The Aga Khan, greets French jockey Yves Saint-Martin at Chantilly Racecourse, France, on June 3, 1979. AFP
The Aga Khan with Pakistani President Farooq Ahmed Leghari on November 12, 1994. AFP
Front row from left to right, the Aga Khan, former Afghan president Hamid Karzai, former UK prime minister Gordon Brown, former UN Secretary-General Ban Ki-moon, and back row second from left, former US Secretary of State Hillary Clinton, with other delegates at the Afghanistan Conference at Lancaster House in London. PA
The Aga Khan and Princess Salimah Aga Khan leave the Elysee Palace in Paris. AFP
The Aga Khan, left, with former French president Francois Mitterrand at the Elysee Palace on November 7, 1990. AFP
Former US State Secretary John Kerry, left, with the Aga Khan at the European Council in Brussels on October 5, 2016. AFP
Prince Karim Aga Khan arrives at Belem Palace in Lisbon on July 9, 2018. The Aga Khan, imam of the Ismaili Muslims, died in Lisbon on February 4, aged 88. AFP
Sheikh Mohammed Bin Rashid Al Maktoum, Vice President and Prime Minister of United Arab Emirates and Ruler of Dubai with His Highness Aga Khan view the scale model of Khor Dubai during launching ceremony of Khor Dubai Cultural Foundation. Paulo Vecina / The National
The Aga Khan at the inauguration of the restored 16th century Humayun's Tomb in New Delhi, India. AP
Britain's Prince Charles is greeted by the Aga Khan in London on November 18, 2010. Reuters
The Aga Khan leaves after the inauguration of the restored 16th century Humayun's Tomb in New Delhi on Wednesday, September 18, 2013. AP
The Aga Khan, greets French jockey Yves Saint-Martin at Chantilly Racecourse, France, on June 3, 1979. AFP
The Aga Khan with Pakistani President Farooq Ahmed Leghari on November 12, 1994. AFP
Front row from left to right, the Aga Khan, former Afghan president Hamid Karzai, former UK prime minister Gordon Brown, former UN Secretary-General Ban Ki-moon, and back row second from left, former US Secretary of State Hillary Clinton, with other delegates at the Afghanistan Conference at Lancaster House in London. PA
The Aga Khan and Princess Salimah Aga Khan leave the Elysee Palace in Paris. AFP
The Aga Khan, left, with former French president Francois Mitterrand at the Elysee Palace on November 7, 1990. AFP
Former US State Secretary John Kerry, left, with the Aga Khan at the European Council in Brussels on October 5, 2016. AFP