Gianfrancesco Sigfrido Benedetto Marinenghi de Guarnieri was an Italian–Brazilian actor, lyricist, poet and playwright. He was a key participant in the Arena Theater of São Paulo, his most important work was "They Don't Wear Black Tie".
- Occupation
- poet, actor, writer, television actor
- Position held
- municipal secretary of Sao Paulo
- Citizenship
- Italy, Brazil, Kingdom of Italy
- Born
- August 6, 1934
- Died
- July 22, 2006
