6. Sheikh Faisal bin Qassim Al Thani, $2.2 billion
Sheikh Faisal bin Qassim Al Thani became a success despite his family name, not because of it. His title Sheikh is not related to any royalty/political position. He is a distant relative of the ruling Al Thani’s in Qatar; it is believed that some family branches can be marginalized to prevent coups.
He owns Al Faisal Holding Company, which operates in various industries such as real estate; Al Faisal Holding Company is heavily involved in luxury hotels and high-end commercial real estate development.
5. Sheikh Hamad bin Khalifa Al Thani, $2.4 billion
Sheikh Hamad bin Khalifa Al Thani was the Emir of Qatar from 1995 until 2013. During his reign, the nation produced nearly 85 million tons of natural gas, which lead Qatar to be the richest country in the world per capita.
He abdicated the throne last year to be succeeded by his son. Sheikh Hamad took power from his father after a bloodless coup.