Opening Ceremony of the Centenary attended by President Mattarella in Rome

Today, 20 April 2026, UNIDROIT, the International Institute for the Unification of Private Law, officially began the celebrations for the 100th anniversary of its foundation in the presence of the President of the Italian Republic, the President of the Italian Constitutional Court, the First President of the Italian Court of Cassation, the Secretary of State for European and Global Affairs of the Kingdom of Spain, and the Ambassadors of Member States.

UNIDROIT is an independent intergovernmental organisation with 65 Member States from all five continents. It was originally established in 1926 as a subsidiary body of the League of Nations, upon the initiative of Italian jurist Vittorio Scialoja. Its mandate was, and remains, to contribute to the progressive harmonisation and unification of private and commercial law. From its very origins, its mission has been guided by a clear vision of cooperation between peoples and the promotion of dialogue and peace among nations through the observance of common rules. The seat of UNIDROIT has always been in Rome.
In his opening address in the inaugural ceremonies, UNIDROIT President Prof. Enzo Moavero Milanesi emphasised: “UNIDROIT remains a steadfast point of reference within the global legal community and serves as a forum for ongoing, constructive dialogue between different legal traditions, on a basis of true equality. In a world that, over the last 100 years, has witnessed periods of peace and conflict, terrible wars, cycles of growth, and crises in multilateralism – and in particular in the current difficult context – UNIDROIT continues to achieve positive results by virtue of its eminently technical role and the beneficial impact of its initiatives.”

Representing the Presidency of the UNIDROIT General Assembly, which is held by Spain this year, the Secretary of State for European and Global Affairs of the Kingdom of Spain, Diego Martínez Belío, added:
“As Member States, we are particularly proud of the unique characteristics of this institution. UNIDROIT has proven to be so valuable and effective precisely because its mandate is technical and practical rather than political, in the best sense of those terms. It does not oblige countries to relinquish their legal identity, nor does it pursue or impose ideological conformity.”

Then, the President of the Italian Republic, Sergio Mattarella, inaugurated an exhibition of original documents and materials from the archives of both UNIDROIT and other institutions, tracing the early years of UNIDROIT’s foundation and development. The exhibition will remain on permanent display at Villa Aldobrandini in Rome.

The day concluded with speeches by representatives of UNIDROIT’s Member States, followed by those from the community of international organisations, the judiciary, academia, and the legal profession. In introducing this portion of the proceedings, UNIDROIT Secretary-General Prof. Ignacio Tirado explained that:
“UNIDROIT has reached its Centenary with more Member States and more legislative projects than at any other time in its history, with an extraordinary capacity to help countries modernise their legal systems, thereby promoting international trade and investment and thus global economic growth.”

Today’s ceremony marks the start of an extensive programme of events that will take place throughout the Centenary year of 2026, both in Italy and internationally.

For more information, please contact: centenary@unidroit.org

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