Piccioni was co-founder and member of the Christian Democrats and in 1954 and 1962 to 1963 under Prime Minister De Gasperi foreign minister of his country. He was also from 1950 to 1951 Minister of Justice. He also was a member from 1953 to 1958 the Camera dei deputati and in 1972 Senator.
His son is the jazz musician and film composer Piero Piccioni.
- Minister of Foreign Affairs (Italy )
- Minister of Justice (Italy )
- Member of the Chamber of Deputies ( Italy)
- Senator (Italy )
- DC Member
- Born in 1892
- Died in 1976