Graham Chapman
"The Private Life of Genghis Khan" is a short story written by Douglas Adams and Graham Chapman. It is based in part on a sketch devised by Graham Chapman, and written by Chapman and Adams for the 1975 TV show pilot "Out of the Trees". It appears in "The Utterly Utterly Merry Comic Relief Christmas Book" and some versions of "The Salmon of Doubt". It is also available on Douglas Adams' website.