Barakzai dynasty
In 1826, Dost Mohammad Khan, of the Barakzai clan of the Durrani tribe, founded the Barakzai dynasty centered at Kabul. The Barakzai dynasty ruled present-day Afghanistan until 1973 when Mohammed Zahir Shah, the last Barakzai king, was overthrown in a bloodless coup by his own cousin Mohammed Daoud Khan. The coup ended the Barakzai kingdom and established the Republic of Afghanistan (1973–1978). The current heir apparent and crown prince of the Barakzai kingdom (23 July 2007 – present) is Ahmad Shah Khan.