His Highness Prince Karim Al-Hussaini, Aga Khan IV, who passed away at the age of 88 in Lisbon, was an unparalleled figure in both the spiritual and sporting worlds. As the 49th Imam of the Nizari Ismailis and a distinguished owner-breeder in horse racing, he left an indelible mark on history. Inheriting the title of Aga Khan in 1957, he took over the family's bloodstock interests after his father's tragic death in 1960. Over the decades, he not only maintained but also elevated the family’s legacy in racing, while guiding millions of followers worldwide with wisdom and compassion. His contributions to the sport are legendary, with numerous champions bred and raced under his watch, including Shergar and Zarkava.

Born into a lineage that stretches back to the seventh century, Karim became Aga Khan IV at just 20 years old, following the death of his grandfather in 1957. Initially more inclined towards academics and sports, he quickly adapted to his new role as a spiritual leader and steward of the family’s racing empire. Despite the sudden responsibility thrust upon him, Karim embraced it wholeheartedly. He made significant changes to focus the family’s racing operations primarily in France, where he built a formidable partnership with trainers like Francois Mathet and later Alain de Royer-Dupre. This strategic move laid the foundation for decades of success, culminating in multiple victories in prestigious races such as the Prix de l’Arc de Triomphe and the Derby.

Karim’s commitment to excellence extended beyond racing. He established the Aga Khan Development Network, a charitable organization aimed at improving the lives of his followers through education, healthcare, and economic development. His leadership was marked by a blend of tradition and innovation, ensuring that the Ismaili community thrived in the modern world. Racing remained a passion, and under his guidance, the Aga Khan Studs became synonymous with quality and success. Notable horses like Shergar, winner of the 1981 Derby, and Zarkava, victorious in the 2008 Prix de l’Arc de Triomphe, exemplified the stud’s prowess.

In addition to his achievements in racing, Aga Khan IV was known for his impeccable character and moral integrity. He defended his horses vigorously when they faced doping allegations, ensuring that justice prevailed. His high standards and dedication earned him respect not only within the racing community but also among his followers. The Aga Khan’s influence transcended borders, as evidenced by his address to the Joint Session of the Parliament of Canada in 2014, making him the first faith leader to do so.

Aga Khan IV’s passing marks the end of an era, leaving behind a rich legacy in both spirituality and sport. His contributions to the racing world have set a benchmark for future generations. While his eldest son, Prince Rahim, is expected to succeed him as Aga Khan V, Princess Zahra has shown a deep interest in continuing her father’s passion for horse breeding. The Aga Khan Studs will undoubtedly remain a symbol of excellence, carrying forward the vision and values of one of the most remarkable leaders of our time.