Gnaeus Calpurnius Piso was a high ranking Roman aristocrat and senator. He was firmly traditionalist and opposed the populist First Triumvirate, and later Julius Caesar. He fought against Caesar in Caesar's civil war and against his adopted son, Octavian, in the Liberators' civil war; both times on the losing side.
- Occupation
- politician, military personnel, consul
- Position held
- consul suffectus, ancient Roman senator
- Citizenship
- Ancient Rome
- Born
- 50 BC
