sentences:  His younger brother, Abdul Ahad Karzai, was the father of President Hamid Karzai.Habibullah Khan Karzai served as special advisor and speechwriter to King Zahir Shah and accompanied him in the course of the King's state visit to the United States during the Presidency of John F. Kennedy.He has also served as senior envoy from the Afghan Foreign Ministry and Permanent Representative from Afghanistan to the United Nations.