Synonymous with extravagant palaces, fabulous jewels and a host of other prime assets, royalty has long been entwined with extraordinary wealth. While today's monarchs rank among the most affluent people on the planet, the royals of the past were on another level. In fact, several had fortunes equivalent to trillions of dollars in today's money, making the likes of King Charles III's estimated wealth of up to $2 billion (£1.6bn) seem paltry in comparison.

Beginning with a threshold of $10 billion (£7.8bn), read on to discover history's top 30 richest royals (including some living examples) based on expert wealth estimates.

Historic wealth figures have been adjusted for inflation to give you an idea of the royals' incredible fortunes in today's money. All dollar amounts in US dollars.