In a list which also includes former Shrewsbury Town goalkeeper Joe Hart and musician Ellie Goulding, young duke Hugh Grosvenor came out on top thanks to the £9.52 billion fortune he inherited last year.
The total value of the estate grew by £170 million during a period in which the 27-year-old Duke, who studied at Ellesmere College between 2000 and 2009, inherited the family estate after the death of his father, Gerald Cavendish Grosvenor.
His colossal wealth put him top of the list of Britain's richest under-30s, and in ninth place in the overall Sunday Times Rich List.
His family's property empire includes 300 acres of land in Central London, 165,000 acres of British countryside, and high-end property across Europe, Asia and the Americas.
He is dating another former Ellesmere pupil, Harriet Tomlinson.
While England goalkeeper Hart is well short of a place in the country's 1,000 richest people, his £17 million fortune puts him 40th on the list of those aged 30 or under – a list for which he will not qualify next year.
Goulding, who comes from near the Shropshire border in Herefordshire, was joint 31st in that list, sharing the spot with internet entrepreneur Nick Aloisi, Manchester United midfielder Juan Mata, and musician Sam Smith, who all have £20 million to their name.
Other people with Shropshire links to appear on the list include Phones 4U entrepreneur John Caudwell, who is the country's 82nd richest man with a fortune worth £1.514 billion, and Lloyds Animal Feeds founder William Lloyd, whose £183 million fortune puts him in joint 617th place.
Malcolm Walker, who founded Iceland in Oswestry in 1970, is now worth £259 million, putting him 442nd on the overall Rich List. His fortune has grown by £33 million since last year.
Khoo Kay Peng, chairman and major shareholder of Newtown-founded retailer the Laura Ashley Group, clocks in at 640th in the list with a total fortune of £177 million.
Robin Faccenda, whose chicken company bears his family name and has a major site employing hundreds of people in Telford, is 363rd, with weather totalling £322 million.
The Queen is 329th on the list thanks to her £360 million fortune – which excludes the Crown Estate, which are not directly controlled by the monarch.
But Britain's richest people are the Hinduja brothers, Sri and Gopi, whose trading has covered everything from spice to oil, and whose combined fortune is now £16.2 billion.