Karl Hjalmar Branting (23 November 1860 – 24 February 1925) was a Swedish politician. He was the leader of the Swedish Social Democratic Party (1907–1925), and Prime Minister during three separate periods (1920, 1921–1923, and 1924–1925). When Branting came to power in 1920, he was the first Social Democratic Prime Minister of Sweden. When he took office for a second term after the general election of 1921, he became the first socialist politician in Europe to do so following elections with universal suffrage. He won the Nobel Peace Prize in 1921 with Christian Lous Lange.