Source:
Wikipedia
Hasso Plattner
His donation of six million euros for the Isombululo programme for the prevention and treatment of HIV/AIDS was announced at the Presidents Cup, one of the world’s leading international golf tournaments in 2003 and it is suggested that this amount will have helped 360,000 people.
Plattner has contributed €20 million to the reconstruction of the Stadtschloss (in Potsdam), which was damaged during World War II and demolished in 1959. Plattner signed The Giving Pledge in February 2013.