A major loss to the sports world
The current president of Azerbaijan owns a vast patrimony, ie. an inherited estate. Despite earning the equivalent to US$228,000 per year, his private investments are worth much more.
The former prime minister of China is another wealthy man on the list.
The businesswoman and eldest daughter of former President of Angola, José Eduardo dos Santos, was the richest woman in Africa as of 2013. She had a net worth of US$3.5 billion
The 77-year-old Lichtenstein prince is Europe's richest monarch.
The supreme leader of North Korea also owns a vast patrimony and a huge fortune.
He is known as Sheikh Nahyan and is the current head of state of the United Arab Emirates (UAE) and emir of Abu Dhabi.
He was president of Tunisia between 1987 and 2011 and owns a large number of assets.
The sultan and absolute monarch of Brunei owns the largest private royal residence in the world, with a total of 1,788 rooms, according to The New York Times.
The late Thai king ruled the country from 1946 to 2016, the year of his death.
The late politician Ali Abdullah Saleh (1942-2017) was president of Yemen from 1978 to 1990.
He was president of Egypt from 1981 to 2011, after being overthrown during the Arab Spring.
Official sources say the Syrian ex-president has a fortune valued at US$1.5 billion.
Before being overthrown and killed, it is estimated that the Libyan dictator was one of the richest men in the world.
It is believed that the current president of Russia may be the richest man in the world, surpassing even Bill Gates and Jeff Bezos, according to CNBC.
This Jewish family from Hamburg, Germany, established a banking dynasty in Europe and now owns a huge fortune, according to Celebrity Net Worth information.
Estimated fortune: US$1.4 trillion.
The house of Saudi Arabia has a total fortune estimated at US$1.4 trillion, according to information from House of Saud website. House of Saud controls an impressive amount of wealth and the oil business may be primarily responsible for these exorbitant amounts of money.
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Estimated fortune: US$6.7 billion.
Ibrahim is perhaps one of the richest criminals in history. He founded the D-Company in Mumbai in the 1970s. By then his fortune was incalculable. He has several crimes on his resume, Interpol reports.
A recent Forbes list revealed that Elon Musk is the richest man in the world. However, there may be world leaders with bigger fortunes. The total assets of these leaders are not fully disclosed but here we present those who may be hiding secret fortunes that would make them the richest men in the world.
Click through the gallery to find out who they are and how much they're worth!
Financial secrets of world leaders
Undisclosed assets and classified businesses may hide huge fortunes
CELEBRITY Fortune
A recent Forbes list revealed that Elon Musk is the richest man in the world. However, there may be world leaders with bigger fortunes. The total assets of these leaders are not fully disclosed but here we present those who may be hiding secret fortunes that would make them the richest men in the world.
Click through the gallery to find out who they are and how much they're worth!