In 1973, while Zahir Shah was undergoing medical treatment in Italy, his regime was overthrown in a coup d'etat by his cousin and former prime minister, Mohammed 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.