Nonius Philippus was a governor of Britannia Inferior, a province of Roman Britain by AD 242.
Epigraphic Evidence of Nonius Philippus being Governor of Britannia Inferior
MAGLONA (Old Carlisle, Cumbria; RIB 897; altarstone; dated: 242AD)
I O M PRO SALVTE IMPERATORIS M ANTONI GORDIANI P F INVICTI AVG ET SABINIAE FVRIAE TRANQVILAE CONIVGI EIVS TOTAQVE DOMV DIVIN EORVM ALA AVG GORDIA OB VIRTVTEM APPELLATA POSVIT CVI PRAEST AEMILIVS CRISPINVS PREF EQ NATVS IN PRO AFRICA DE TVSDRO SVB CVRA NONII PHILIPPI LEG AVG PRO PRETO ATTICO ET PRAETEXTATO COS
To Jupiter Optimus Maximus, for the health of the commander-in-chief Marcus Antonius Gordianus Pius Felix, Invincible Augustus, and for Sabinia Furia Tranquila his wife (and) the entirety of the divine house, the August Gordian Wing thus named by reason of their virtue, placed this, under the command of the cavalry prefect Aemilius Crispinus, a native of Tusdro in the province of Africa, under the administration of Nonius Phillipus, pro-praetorian legate, (when) Atticus and Praetextatus were consuls.