Mansour Akram Ojjeh, the French Saudi Arabia-born entrepreneur who was the CEO and part-owner of TAG, died on June 6. He was 68.

Born in 1952, the son of Saudi businessman and TAG founder Akram Ojjeh, he grew up in France but attended schools in the U.S., graduating in 1974 with a degree in business administration from Menlo College in California.

Mansour and his brother Aziz inherited the Luxembourg-based conglomerate TAG Group Holdings after their father died in 1991. Established in 1975, the group had a stake in multiple industries—from commercial real estate to Formula One racing and, until recently, business aviation.

Under the stewardship of Mansour and his brother, TAG, which stands for Techniques d’Avant Garde, grew into an expansive international business aviation operation that over the years operated charter, FBO, management, maintenance, and brokerage businesses. In addition, TAG played an integral role in the development of Farnborough Airport into a significant business aviation center after the UK government decided in the 1990s it should be redeveloped. However, in recent years, TAG divested its business aviation holdings.

While having had a strong influence in the business aviation arena, Ojjeh’s interests and business involvements were wide and varied. He was active in the Formula One world through TAG’s stake in the McLaren Group. McLaren Racing CEO Zak Brown called Ojjeh a “titan” in the sport and said his passing was devastating. Ojjeh also at one time was the owner of watch-maker TAG Heuer and held a 10 percent interest in high-end jewelers Asprey and Garrard.

Over the past decade, Ojjeh had suffered from health issues, leading to a double lung transplant in late 2013.