Complex sentence: De Gasperi Agreement, named after the foreign minister of Austria (Karl Gruber) and the prime minister of Italy (Alcide De Gasperi), of September 1946, allowed Trentino-Alto Adige/Südtirol to remain part of Italy, but ensured its autonomy.
Split into simpler sentences: De Gasperi Agreement was named after the foreign minister of Austria, Karl Gruber, and the prime minister of Italy, Alcide De Gasperi. In September 1946, it allowed Trentino-Alto Adige/Südtirol to remain part of Italy but ensured its autonomy.