Elections and Provinces Liv. 25.41.12-13; armies: 26.1.9-13, cf. 28.10-12 (Broughton MRR I)
As no Pr. Peregrinus is mentioned, Calpurnius probably combined the duties of both praetorships. See Mommsen, Str. 2.210, note 5. (Broughton MRR I)
Liv. 26.3.9, 15.8, and 21.1. Commanded the citadel when Hannibal was near Rome (26.20.2). Celebrated the Ludi Apollinares (Liv. 26.23.3; Fest. 436, with praenomen M., and 438 L; see Grueber, CRRBM{273} 1.251ff., and 450ff.; Cesano, Stud. Num. 1.166f.). See also Gaius 4.19; Lange, 2.662; and Appendix, Tribunes of the Plebs. (Broughton MRR I)
Imperium prorogued, probably as Propraetor (Liv. 27.6.1; cf. 21.6) in Etruria (Liv. 26.28.6; cf. 27.7.10), though he was summoned to a brief command at Capua (27.6.1). (Broughton MRR I)