He was rushed to the hospital from his Abbeystead Estate in Lancashire after suffering a suspected heart attack. His 25-year-old son Hugh inherits his title and his vast fortune.
|His son and wife, Natalia|
He was thought to be worth £9.35 billion and owned Grosvenor Estates, which has 300 acres across the capital.
It was thought the Duke was the 68th richest billionaire in the world.