What you might not know about the American author
Even though Monaco is only half the size of Central Park in New York, he still racked up a net worth of more than US$1 billion. He owns the estate of his mother (Grace Kelly), several antique cars, and a pricey stamp collection.
King Rama X is the richest royal in the world. By a long shot! He was crowned in 2019, and is reportedly worth US$30 billion.
His family receives money from the Crown Property Bureau, which manages the royal family's property investments. He is said to own the world's largest cut and faceted diamond.
King Carl of Sweden has an estimated net worth of US$70 million. In the year 2015 alone, he was paid $7.6 million for his official duties.
He owns the Solliden Palace in Sweden as well as a summer home in the Baltics.
Following the death of Queen Elizabeth, Charles ascended to the throne and took over the assets and funds assigned to the sovereign of the state. He now owns the late Queen's beloved Balmoral Castle and Sandringham Palace, and receives a large percentage of the profits from the Crown Estate every year. This is called the Sovereign Grant. For the year 2021-2022, this amounted to US$104 million for the crown.
One of his many investments is a 'Star Trek' theme park in Jordan. It's going to be built as part of the Red Sea Astrarium, a US$1.55 billion resort development.
King Salman of Saudi Arabia is worth an estimated US$20 billion. The majority of his wealth comes from his family's ownership of a media group that owns several of the region's largest daily newspapers.
Amongst his possessions is a mega-yacht called the Tueq, which is almost as long as a soccer field.
His wealth comes from oil and gas, and his extravagant lifestyle is well known. He lives in the world's largest palace and is rumored to own a collection of over 600 Rolls-Royces.
Most of his wealth comes from his family's ownership of Morocco's National Investment Company, which deals with telecommunications, renewable energy, and banking.
Prince Hans Adam is worth an estimated US$6.2 billion. Liechtenstein is another country that doesn't pay its royals a high salary directly, but they benefit massively from investments and land ownership.
The Emir Sheikh of Dubai is also worth an estimated US$14 billion. He acts as both the vice president and the prime minister of Dubai, as well as being royalty.
The Emir controls the Dubai Holding Group, an investment company that represents some of the biggest retail brands in the world, including Zara and Stradivarius.
The Grand Duke of Luxembourg has an estimated net worth of US$4 billion. While the Ducal family do not receive a salary, they do get US$325,000 to carry out their royal functions.
Juan Carlos I abdicated in 2013 amid criticism of his massive wealth, considering he was the ruler of a country with a very high unemployment rate.
Vanity Fair estimated that he amassed a fortune of approximately US$2 billion through investments in oil.
The Emir of Qatar has an estimated net worth of US$1.2 billion. He became the Emir after his father stepped down in 2013. His father was worth an estimated US$2.3 billion at the time!
The royals of Qatar generally gain their wealth from the Qatar Investment Authority which manages the country's oil and gas reserves.
So, how did they become billionaires? That is somewhat of a mystery. The royals of Luxembourg claim that reports of their wealth are greatly exaggerated.
Mohamed bin Zayed Al Nahyan became the Emir of Abu Dhabi when his father, Sheikh Khalifa bin Zayed Al Nahyan, passed away in May 2022. His son inherited his role and his assets, as well as those of one of the richest monarchies in the world.
He was already a multi-billionaire, but after absorbing and estimated US$15 billion, he is worth around US$18 million. The entire Abu Dhabi royal family is worth an estimated US$150 million.
The British royal family may be one of the best known in the world, but they're far from being the richest. Although that's not to say that they aren't rolling in it! There are some serious big spenders in Europe, but the real money is to be found further afield–closer to the oil fields, to be specific.
Click through this list to discover some of the world's richest royals, and where they get their money from.
Who are the richest royals in the world?
Discover the unimaginable riches of the world's most powerful monarchies
CELEBRITY Royal fortunes
The British royal family may be one of the best known in the world, but they're far from being the richest. Although that's not to say that they aren't rolling in it! There are some serious big spenders in Europe, but the real money is to be found further afield–closer to the oil fields, to be specific.
Click through this list to discover some of the world's richest royals, and where they get their money from.