9FILES) This picture taken on July 16, 1996 shows French President Jacques Chirac (L) and Omar Bongo, President of Gabon, touring Libreville in a official Rolls-Royce car during Chirac's two-day visit to Gabon. Africa's longest-serving ruler, Gabon President Omar Bongo Ondimba, who was being treated for an illness in a Spanish clinic, has died aged 73, a French government source said on June 7, 2009. Getty Images logo Getty Images 32 months ago

9FILES) This picture taken on July 16, 1996 shows French President Jacques Chirac (L) and Omar Bongo, President of Gabon, touring Libreville in a official Rolls-Royce car during Chirac's two-day visit to Gabon. Africa's longest-serving ruler, Gabon President Omar Bongo Ondimba, who was being treated for an illness in a Spanish clinic, has died aged 73, a French government source said on June 7, 2009.