Caesoninus" The Piso Frugi family article of Matidia the Elder at Livius.org https://web.archive.org/web/20101202052050/http://www.ancientlibrary.com/smith-bio/2808.html https://web.archive.org/web/20090315042446/http://www.ancientlibrary.com/smith-bio/3091.html 1st-century Romans Calpurnii Pisones Frugi, Marcus Imperial Roman consuls Imperial Roman praetors Year of birth unknown Year of death unknown