7. Lakshmi Mittal and family: £9.2 billion
He made his fortune through his steel company ArcelorMittal. He owns like 38% of the largest steel company ArcelorMittal.
In 2011, he was the 6th richest person in the world before his business started to struggle the following year.
He’s since put one of his three mansions on London’s billionaires’ row up for sale.
Plus he hired Kylie Minogue for his now-divorced daughter’s wedding — the estimated second most expensive wedding in history which ran up a wine tab alone of $1.5 million.
With all that, he is ranked as 7th on Richest People in UK list.