Who is the Duke of Westminster and how did he become richer than the King Charles?

The "society wedding of the year" is set to take place in Chester today (June 7) which will see the Duke of Westminster, Hugh Grosvenor, marry his fiancee Olivia Henson. Thousands are expected to line the streets to welcome in the wedding of one of Britain's richest men.

No expense will have been spared on celebrations for the ceremony which will take place at Chester Cathedral with royalty, celebrities and VIPs all expected to be in attendance. Many roads have been closed around the city centre due to a huge security operation planned around the big event. You can follow live updates here.

Following the formal wedding service, guests will venture to the Duke's estate, the sprawling Eaton Hall which is valued at over £10billion, for the wedding party. The couple have previously announced that once married they plan to set up home at the countryside retreat.

READ MORE: Road closures, free ice cream and thousands of flowers: Chester prepares for "Britain's poshest wedding"

The 33-year-old property tycoon from Chester is a figure of immense wealth that many find hard to comprehend. As the richest individual under 40 in the UK and the 14th wealthiest overall, according to The Sunday Times Rich List, he commands an astounding fortune of £10bn.

Hugh's life took a dramatic turn in 2016 when he was just 25. His father Gerald Cavendish Grosvenor, the sixth Duke of Westminster, passed away suddenly from a heart attack.

In that moment, Hugh became one of the nation's wealthiest landowners, inheriting an extensive property portfolio that includes some of London's most desirable postcodes - half of Mayfair and 300 acres of Belgravia, as reported by the Mirror.

The Grosvenor Group, the source of this vast wealth, also owns the