The Charlemagne Prize is a prize awarded for work done in the service of European unification. It has been awarded since 1950 by the German city of Aachen. It commemorates Charlemagne, ruler of the Frankish Empire and founder of what became the Holy Roman Empire, who was the first to unify Western Europe following the Fall of the Western Roman Empire. Traditionally the award is given to the recipient on Ascension Day in a ceremony in the Aachen Town Hall. In April 2008, the organisers of the Charlemagne Prize and the European Parliament jointly created a new European Charlemagne Youth Prize, which recognises contributions by young people towards the process of European integration. Patrons of the foundation are King Philippe of Belgium, King Felipe VI of Spain, and Henri, the Grand Duke of Luxembourg.

Konstantinos G. Karamanlis, commonly anglicised to Constantine Karamanlis or just Caramanlis, was a four-time Prime Minister of Greece and two-term president of the Third Hellenic Republic. A towering figure of Greek politics, his political career spanned portions of seven decades, covering much of the latter half of the 20th century.