Rainer Candidus Barzel (June 20, 1924 – August 26, 2006) was a German politician of the CDU.

Born in Braunsberg, East Prussia (present-day Braniewo, Poland), Barzel served as Chairman of the CDU from 1971 and 1973 and ran as the CDU's candidate for Chancellor of Germany in the 1972 federal elections, losing to Willy Brandt's SPD.

The 1972 election is commonly regarded as an indirect referendum on Chancellor Brandt's Ostpolitik (eastern policy), which called for normalized relations with the GDR and the USSR, and which Barzel vehemently opposed. In April 1972, an attempt by Barzel and the CDU/CSU to call a motion of no confidence against Brandt's government failed by two votes because of Stasi bribes. Following the motion, Barzel would have succeeded Brandt as Chancellor of Germany. The government, in consideration of the fact that it had lost its parliamentary majority and that parliamentary work was stalled, reacted by calling new elections, which it won decisively—1972 was the only time before 1998 and after World War II that the SPD outpolled the CDU, it still represents the SPD's highwater mark as a vote share, and these elections had the highest turnout ever.

Herbert Richard Wehner (11 July 1906–19 January 1990) was a German politician. A former member of the Communist Party, he joined the Social Democrats (SPD) after World War II. He served as Federal Minister of Intra-German Relations from 1966 to 1969 and thereafter as chairman of the SPD parliamentary group in the Bundestag until 1983.

During his tenure in the Bundestag from 1949 to 1983, Wehner became (in-)famous for his caustic rhetoric and heckling style, often hurling personal insults at MPs with whom he disagreed. He holds the record for official censures (77 by one count, 78 or 79 by others) handed down by the presiding officer.

Herbert Wehner was born in Dresden, the son of a shoemaker. His father was active in his trade union and a member of the Social Democratic Party. More radical than his father, Wehner engaged in anarcho-syndicalist circles around Erich Mühsam, driven by the 1923 invasion of Reichswehr troops into the Free State of Saxony at the behest of the DVP–SPD Reich government of Chancellor Gustav Stresemann. He also fell out with Mühsam, whose pacifist manners he rejected, and finally joined the Communist Party of Germany (KPD) in 1927, becoming an official of the party's Rote Hilfe organisation the same year.

Willy Brandt (born Herbert Ernst Karl Frahm; German pronunciation: [ˈvɪli ˈbʁant]; 18 December 1913 – 8 October 1992) was a German politician, Mayor of West Berlin 1957–1966, Chancellor of West Germany 1969–1974, and leader of the Social Democratic Party of Germany (SPD) 1964–1987.

Brandt's most important legacy was Ostpolitik, a policy aimed at improving relations with East Germany, Poland, and the Soviet Union. This policy caused considerable controversy in West Germany, but won Brandt the Nobel Peace Prize in 1971.

In 1974, Brandt resigned as Chancellor after Günter Guillaume, one of his closest aides, was exposed as an agent of the Stasi, the East German secret service.

Willy Brandt was born Herbert Ernst Karl Frahm in the Free City of Lübeck (German Empire) to Martha Frahm, an unwed mother who worked as a cashier for a department store. His father was an accountant from Hamburg named John Möller, whom Brandt never met. As his mother worked six days a week, he was mainly brought up by his mother's stepfather Ludwig Frahm and his second wife Dora.

 Jörg Haider (help·info) (German pronunciation: [ˈjœɐ̯k ˈhaɪdɐ]; 26 January 1950 – 11 October 2008) was an Austrian politician. He was Governor of Carinthia on two occasions, the long-time leader of the Austrian Freedom Party (FPÖ) and later Chairman of the Alliance for the Future of Austria (Bündnis Zukunft Österreich, BZÖ), a breakaway party from the FPÖ.

Haider was a controversial figure within Austria and abroad for comments that were widely condemned as praising Nazi policies or as being xenophobic or anti-Semitic. Several countries imposed mild diplomatic sanctions against his party's participation in government alongside Wolfgang Schüssel's ÖVP, starting from 2000. Haider died in a car accident shortly after leading the BZÖ in the Austrian Parliamentary elections.

Haider's parents had been early members of the Nazi Party (NSDAP, German National Socialist Workers' Party, the Austrian affiliate of the German NSDAP). They were from different backgrounds. Haider's father, Robert Haider, was a shoemaker. His mother, Dorothea Rupp, was the daughter of a well-to-do physician and head of the gynaecology ward at the general hospital of Linz.

Walter Scheel (German pronunciation: [ˈvaltɐ ˈʃeːl]; born 8 July 1919) is a German politician (FDP). He served as Federal Minister of Economic Cooperation and Development from 1961 to 1966, Foreign Minister of Germany and Vice Chancellor from 1969 to 1974, acting Chancellor of Germany from 7 May to 16 May 1974 (following the resignation of Willy Brandt after the Guillaume Affair), and finally as President of the Federal Republic of Germany from 1974 to 1979.

He is currently the oldest former German president alive and the longest-lived German head of state.

Scheel was born in Solingen (now in North Rhine-Westphalia). During World War II, he served in the Luftwaffe, the last years of the war as a radar operator on a Bf 110 night fighter.

When his Free Democratic Party reentered government in a coalition with Konrad Adenauer's Christian Democratic Union in 1961, Scheel was appointed federal minister of economic cooperation and development. He continued in that office under Chancellor Ludwig Erhard but brought about the downfall of the latter in late 1966 of which he had become the leader, out of the coalition government. A Christian Democratic / Social Democratic Grand Coalition followed. During this time, in 1968, Scheel took over the party presidency from right wing liberal Erich Mende.