Haile Selassie (1892-1975) was ruler of Abyssinia (Ethiopia and Eritrea) until 1974. The quite rare unoffical photo (probably at the airport) was taken by Erich Holm von Prosch during his visit there.
An interesting article was published in the 'Spiegel' in 1954 on the occasion of his state visit to the Federal Republic of Germany. To the article