The richest king in history is widely considered to be Mansa Musa I, the 14th-century emperor of the West African Mali Empire, whose wealth from vast gold and salt resources was so immense it's described as incomprehensible, with some estimates placing his fortune at $400 billion in today's dollars, far exceeding modern billionaires. His legendary generosity, demonstrated during his pilgrimage to Mecca where he distributed so much gold it caused inflation, cemented his status as the wealthiest person ever.
Musa himself further promoted the appearance of having vast, inexhaustible wealth by spreading rumors that gold grew like a plant in his kingdom. Encyclopedia Britannica states that he is "widely considered to be the wealthiest person in history".
He was the first African ruler to be famous in all of Europe and the Middle East. Historians say he was the richest person to have ever lived. Today, his wealth would be worth more than 400 billion USD.
The King of Thailand, Maha Vajiralongkorn became the wealthiest royal and one of the richest people in the world when he ascended to the throne in 2016. The monarch has a fortune of $45 billion (£33bn) according to Fox Business.
Richest family in the world - The Saudi royal family, known as the House of Saud, is the wealthiest royal family in the world with a net worth of approximately $1.4 trillion.
The world's 10 richest families
The House of Saud, which is the ruling royal family of Saudi Arabia, is reportedly the wealthiest family of the globe. Surpassing the combined fortunes of high-profile billionaires like Elon Musk, Mukesh Ambani, Adani, Narayana Murthy combined.
Yes, Prince William is significantly richer than Prince Harry, primarily because William inherited the Duchy of Cornwall (a massive land/property estate) from his father, King Charles, making him worth over $1 billion, while Harry's wealth comes from inheritances and media deals, placing him below William's total, though still very wealthy with his Netflix/Spotify contracts.
Empress Wu (624-705) — US$16 trillion
Even with the controversy, she's remembered as both a visionary leader and a symbol of power, her legacy enduring through various depictions in media and her immense estimated wealth of US$16 trillion, BusinessDay reported.
As of late 2024 and into 2025, Elon Musk became the first person to surpass a $400 billion net worth, primarily driven by the rising values of SpaceX and Tesla and his AI venture xAI. While fluctuations occur, he consistently ranks as the world's richest person, with figures showing his wealth significantly exceeding other billionaires like Jeff Bezos.
Genghis Khan — $120 Trillion 3. Emperor Shenzong — $45 Trillion 4. Akbar I — $29 Trillion 5. Empress Wu Zetian — $25 Trillion 6.
Elon Musk, the chief executive of Tesla and SpaceX, has surged far ahead of the world's wealthiest business leaders, with his fortune now dwarfing that of India's two richest men, Mukesh Ambani and Gautam Adani, put together.
If Elon Musk is the world's first trillionare before Jan 1, 2030 then the market resolves to Yes. Outcome verified from Forbes.
As of early January 2026, Elon Musk is consistently ranked as the world's richest man, leading lists from Forbes and Bloomberg, with significant wealth derived from Tesla, SpaceX, and his various tech ventures, often holding over $600-$700 billion, followed by tech leaders like Larry Page and Jeff Bezos. His fortune has seen significant growth, making him the first person to reach several multi-hundred-billion-dollar milestones, notes Wikipedia.
The wealthiest dynasties in the world have never been richer — and the Waltons lead the pack with a net worth of $513.4 billion.
At the time of his death, Prince had 67 10-ounce gold bars valued at about $840,000, $110,000 in four bank accounts, unclaimed property, and capital credits and cash. He also had a dozen properties in Carver and Hennepin, Minn. that have an estimated total value of $25.4 million.
Diana left an estate of roughly $30 million, but at least a third of that was paid in inheritance tax, leaving nearly $18 million, according to reports. The sum was split equally between William and younger brother Harry.
The Middletons Are Rich
Her parents, Carole and Michael Middleton, are millionaires thanks to their company Party Pieces. On top of that, the couple currently live in a Georgian manor house in Berkshire on an 18 acre estate that's worth a ton.
Meghan Markle's wedding dress is estimated to have cost between £110,000 and £387,000. The exact amount remains undisclosed. Meghan Markle personally paid for her wedding dress. This practice aligns with royal tradition; for instance, Catherine, Duchess of Cambridge, also paid for her own wedding dress.
The richest woman in the world, as of late 2025 reports, is generally Alice Walton, heiress to the Walmart fortune, with figures placing her net worth well over $100 billion, followed by Françoise Bettencourt Meyers & family (L'Oréal), Julia Koch & family (Koch Industries), and Jacqueline Mars (Mars Inc.). Walton's wealth comes from her inheritance of Walmart stock, while the others' fortunes stem from major retail/consumer goods empires and industrial conglomerates.
Mansa Musa, the 14th-century emperor of the Mali Empire, is often regarded as the richest person in history. Musa wasn't just rich—he was a great builder. He transformed Timbuktu into a center of learning, commissioning mosques and universities, including the legendary Sankore University.