Title: Vier Bundespräsidenten aus Nordrhein- Westfalen
Subjects: Presidents, Biography, Politics and government, Statesmen
Places: Germany, North Rhine-Westphalia, North Rhine-Westphalia (Germany)
People: Heinrich Lübke (1894-1972), Gustav Walter Heinemann (1899-1976), Walter Scheel, Johannes Rau
Time periods: 20th century