Calpurnia Pisonis

Calpurnia Pisonis (born 75 BC), daughter of Lucius Calpurnius Piso Caesoninus, sister of Lucius Calpurnius Piso, "the Pontifex", was a Roman woman and the third and last wife of Julius Caesar. Calpurnia was the great-granddaughter of a lieutenant of Lucius Cassius Longinus, whose name was Lucius Piso. The grandfather of Lucius Calpurnius Piso Caesonius was killed by the Tigurini during the Gallic Wars, as was Lucius Cassius Longinus.