Founding fathers of the European Union

The founding fathers of the European Union are 11 men officially recognised as major contributors to European unity and the development of what is now the European Union. All but one (Winston Churchill from the United Kingdom) were from the Inner Six of the European Union.
Sometimes emphasised are three pioneers of unification: Konrad Adenauer of Germany, Alcide De Gasperi of Italy and Robert Schuman of France.
List.
The European Union names 11 people as its founding fathers. These are:
Other sources discuss fewer names.
Proposals and Rome.
Count Richard von Coudenhove-Kalergi (1894–1972) published the Paneuropa manifesto in 1923 which set up the movement of that name. At the start of the 1950s Robert Schuman (1886–1963), based on a plan by Jean Monnet (1888–1979), called for a European Coal and Steel Community in his "Schuman declaration". Monnet went on to become the first President of the High Authority. Schuman later served as President of the European Parliament and became notable for advancing European integration.
Following its creation, the Treaty of Rome established the European Economic Community. Although not all the people who signed the treaty are known as founding fathers, a number are, such as Paul-Henri Spaak (1899–1972), who also worked on the treaty as well as the Benelux union and was the first President of the European Parliament. Other founding fathers who signed the treaty were Konrad Adenauer (1876–1967) of Germany and Joseph Bech (1887–1975) of Luxembourg.
Others.
Further men who have been considered founding fathers are: Giuseppe Mazzini (1805-1872) who founded the association "Young Europe" in 1834 with the vision of a united continent; Victor Hugo (1802–1885) who made a speech where he called for United States of Europe in 1849 at the International Peace Congress of Paris; Milan Hodža (1878–1944) who was famous for his attempts to establish a democratic federation of Central European states (book: "Federation in central Europe, reflections and reminiscences"); Jacques Delors (born 1925), who was a successful Commission President in the 1980s and 90s; Lorenzo Natali (1922–1989); Carlo Azeglio Ciampi (1920-2016); Mário Soares (1924-2017), Portuguese Prime Minister at the time Portugal acceded the EC; and Pierre Werner (1913–2002) a Prime Minister of Luxembourg.
Some have considered American Secretary of State George C. Marshall as an influential force in developing the European Union. His namesake plan to rebuild Europe in the wake of World War II contributed more than $100 billion in today's dollars to the Europeans, helping to feed Europeans, deliver steel to rebuild industries, provide coal to warm homes, and construct dams to help provide power. In doing so, the Marshall Plan encouraged the integration of European powers into the European Coal and Steel Community, the precursor to present-day European Union, by illustrating the effects of economic integration and the need for coordination. The potency of Marshall's plan caused German Chancellor Helmut Schmidt to remark that "[the] United States ought not to forget that the emerging European Union is one of its greatest achievements: it would never have happened without the Marshall Plan."