 He developed a friendship with Arch-Bishop Makarios III who appointed him Cyprus' ambassador to UNESCO and awarded him the medal of St. Barnabas.After his death in 1978, the A.G. Leventis Foundation was established in 1979.It has a primary focus on the cultural heritage of Cyprus and Greece, especially reflected in its collections of Cypriot antiquities displayed in several museums around the world, its restoration of cultural monuments, and its sponsorship of scholarships for postgraduate work in several fields including archaeology and agriculture.