Per Albin Hansson (28 October 1885 – 6 October 1946) was a Swedish politician, chairman of the Social Democrats from 1925 and two-time Prime Minister in four governments between 1932 and 1946, governing all that period save for a short-lived crisis in the summer of 1936, which he ended by forming a coalition government with his main adversary, Axel Pehrsson-Bramstorp. He has been described as one of the fathers of modern Sweden.