Dag Hammarskjold — Swedish Diplomat born on July 29, 1905, died on September 18, 1961

Dag Hjalmar Agne Carl Hammarskjöld was a Swedish diplomat, economist, and author. The second Secretary-General of the United Nations, he served from April 1953 until his death in a plane crash in September 1961. At the age of 7009150523920000000♠47 years, 255 days, Hammarskjöld is the youngest to have held the post. He is one of only four people to be awarded a posthumous Nobel Prize. Hammarskjöld is the only UN Secretary-General to die in office; his death occurred en route to cease-fire negotiations. US President John F. Kennedy called Hammarskjöld "the greatest statesman of our century"... (wikipedia)