Kostas Karamanlis is a Greek politician who served as the Prime Minister of Greece from 2004 to 2009. He is a member of the New Democracy party and became the youngest Prime Minister in Greek history when he took office at the age of 48. His leadership focused on economic reforms and modernization efforts in Greece. Karamanlis was born on September 30, 1956, in Kavala, Greece. He is the nephew of former Prime Minister Constantine Karamanlis, who played a significant role in shaping modern Greek politics. After his tenure as Prime Minister, Karamanlis continued to be active in politics and public life.