Leaders from around the world have joined in mourning the passing of His Highness Prince Karim Al-Hussaini Aga Khan IV, the spiritual leader of the Shia Ismaili Muslim community and the visionary behind the Aga Khan Development Network (AKDN).
The Aga Khan passed away on February 4 in Lisbon, Portugal, at the age of 88, surrounded by his loved ones.
Tanzanian President Samia Suluhu Hassan expressed her sorrow over his death, acknowledging his remarkable contributions to humanitarian work and development across the globe. In a heartfelt message shared on her social media, she wrote, “It is with great sadness that I learned of the passing of His Highness Prince Karim Al-Hussaini, Aga Khan IV, the spiritual leader of the world’s Ismaili Muslims and the founder of the Aga Khan Development Network.”
Zanzibar’s President, Dr. Hussein Mwinyi, also paid tribute to the late leader, describing him as a visionary who dedicated his life to uplifting communities through education, healthcare, and economic initiatives. He highlighted the profound impact of the Aga Khan’s work, particularly in Africa, where his efforts have helped transform lives for decades.
Kenyan President William Ruto echoed similar sentiments, calling the Aga Khan “an extraordinary leader who went beyond what seemed impossible to help the vulnerable—through his charities in hospitals and schools.” His words underscored the lasting legacy the Aga Khan leaves behind, especially in Kenya, where institutions bearing his name continue to provide essential services.
United Nations Secretary-General António Guterres also honored his memory, describing him as “a spiritual guide, philanthropist, and champion of peace, development, and pluralism.”
Canadian Prime Minister Justin Trudeau reflected on his dedication to global progress, saying, “He worked across continents and cultures to resolve the world’s greatest humanitarian challenges: poverty, education, and gender inequality. He was an extraordinary man of vision, faith, and generosity, and I know his legacy will live on through the many lives he touched.”
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Born in Geneva, Switzerland, in 1936, the Aga Khan inherited his spiritual role at the age of 20 after the passing of his grandfather, Sir Sultan Mahomed Shah Aga Khan III. Over the decades, he expanded his influence beyond religious leadership, building a vast network of institutions aimed at improving quality of life in underprivileged regions. Through AKDN, he championed education, healthcare, and economic development, leaving a profound mark on societies in Africa, South Asia, and Central Asia.
His impact is particularly evident in Tanzania and Kenya, where hospitals, universities, and economic programs established under his leadership continue to serve millions. His unwavering commitment to fostering unity, progress, and opportunity for all has made him one of the most respected leaders in the world.