Erich Ollenhauer, German politician (died 1963)

Erich Ollenhauer was the leader of the Social Democratic Party of Germany (SPD) from 1952 until 1963. He was a key leader of the opposition to Konrad Adenauer in the Bundestag. In exile under the Nazis, he returned to Germany in February 1946, becoming vice chairman of the SPD. He was a close ally of the chairman Kurt Schumacher, and worked on party organization. Where Schumacher was a passionate intellectual, Ollenhauer was a thorough and efficient bureaucrat. He became party leader after Schumacher's death in 1952. Besides attending to organizational details, his main role was moderating the tension between the left-wing and right-wing factions. He remained party leader until his death, but yielded to the charismatic Berlin mayor Willy Brandt in 1961 as the party's candidate for chancellor.

March 27 is the 86th day of the year in the Gregorian calendar; 279 days remain until the end of the year.