Heinrich Luebke was the 2nd President of the Federal Republic of Germany, and though he had no political power, he was the state's HIGHEST representative. On a journey through the new founded African states in the mid-sixties, he gave a speech in front of some of the most important African politicians at that time in (I think it was) Ghana, starting up like this:
"Ladies and Gentlemen, dear Niggers!"
Whoops.