A split in the ranks of Chelsea’s aristocratic society could prove to be one of Britain’s most costly divorces.

Edward Cadogan, known as Lord Chelsea, and his wife Katharina Chelsea were granted a divorce at the Royal Courts of Justice in London this week.

The Lord is heir to a £6.5 billion fortune, which includes 93 acres of prime Kensington and Chelsea real estate.

A decree nisi will allow the pair, who have three grown-up children between them, to divorce no less than six weeks from issuing, providing neither partner defends the petition. A decree absolute will then be issued – the legal document which ends a marriage.

Father Earl Cadogan was recently involved in his own divorce proceedings. His former wife was awarded a settlement of £1 million plus a £750,000 country house.

But this settlement pales in comparison to some of Britain’s most expensive divorces.

Chelsea owner and Russian oligarch Roman Abramovich paid out some £155 million after divorcing Irina Malandina in 2007. Mr Abramovich is now splitting from his current wife of 10 years Dasha Zhukova. The pair’s fortune is an estimated £7 billion.

More recently, hedge fund manager Sir Chris Hohn had to pay £337 million to his ex-wife Jamie Cooper in November 2014. The settlement is thought to be the largest ever in Britain. Sir Hohn was forced to split his charity in two, paying £282 million to Ms Cooper’s new foundation.