Prince Al-Waleed bin Talal is a member of the Saudi royal family who built his fortune through entrepreneurship and investment in real estate and the stock market. His philanthropic contributions are wide-ranging and include a contribution of $20 million to found the Centre for Christian-Muslim Understanding at Georgetown University, which remains one of the key institutions globally working on Christian-Muslim relations. In November 2017, he was one of several Saudi princes and billionaires detained on an anti-corruption drive. In April 2020, Alwaleed Philanthropies allocated $30m to the battle against COVID-19. He has over 15 million social media followers.