Samuel Tak Lee and family
Rank 2017

Lee, 78, pledged more than £80m in 2015 to Massachusetts Institute of Technology (MIT), where he studied, to establish a programme to create a new generation of socially responsible entrepreneurs. He also gave Harvard University's Business School £640,000 to set up an online course in leadership skills. Lee divides his time between London and Hong Kong and snapped up the 16-acre Langham estate in central London from the receiver for just £51m in 1993. The estate, located between Soho and Mayfair, was valued at £175m in 1989. Even after the MIT donation and a recent $154m divorce settlement by his son Samathur Li Kin-kan, Lee is worth £2.736bn.