Mohammad Zahir Shah

He expanded Afghanistan's diplomatic relations with many countries, including with both sides of the Cold War. In the 1950s, Zahir Shah began modernizing the country, culminating in the creation of a new constitution and a constitutional monarchy system. Demonstrating nonpartisanism, his long reign was marked by peace in the country which was lost afterwards with the onset of the Afghan conflict.
In 1973, while Zahir Shah was undergoing medical treatment in Italy, his regime was overthrown in a coup d'état by his cousin and former prime minister, Mohammad Daoud Khan, who established a single-party republic, ending more than 225 years of continuous monarchical government. He remained in exile near Rome until 2002, returning to Afghanistan after the end of the Taliban government. He was given the title Father of the Nation, which he held until his death in 2007. Provided by Wikipedia