Reinhard Mohn (29 June 1921 – 3 October 2009) was a German billionaire businessman and philanthropist. Under his leadership, Bertelsmann, once a medium-sized printing and publishing house, established in 1835, developed into a global media conglomerate. In 1977, he founded the non-profit Bertelsmann Stiftung, which is today one of the largest foundations in Germany, with worldwide reach.