The gens Calpurnia was a plebeian family at ancient Rome, which first appears in history during the third century BC.
[6] The family-names of the Calpurnii under the Republic were Bestia, Bibulus, Flamma, Lanarius, and Piso.
Like many other cognomina, this name is connected with agriculture, and comes from the verb pisere or pinsere, which refers to the pounding or grinding of corn.
The family first rose from obscurity during the Second Punic War, and from that time it became one of the most distinguished in the Roman state.
[1] Of the other surnames of the Republican Calpurnii, Bestia refers to a "beast", "an animal without reason".