Marcus Valerius Felix was possible a governor of Britannia Inferior, a province of Roman Britain by 244 AD.
Epigraphic Evidence of Marcus Valerius Felix being Governor of Britannia Inferior
ISCA SILVRVM (Caerleon, Gwent; RIB 327; dated: 23rd September 244AD)
N AVGG GENIO LEG II AVG IN HONOREM MILIT M VALERIVS FELIX… P P D D DD VIIII KAL OCTOB PEREGR ET AEMIL COS CVR VRSO ACTAR LEG EIVS DEM
If this is interpreted as dedicated to the Governor:
For the Living Spirits of the Augusti and the Guardian Spirit of Legio Secundae Augusta, in honour of the military achievements of Marcus Valerius Felix […] propraetor, this votive offering, dedicated on the ninth day before the calends of October, when Peregrinus and Aemilianus were consuls, was arranged by Ursus, Actarius in the aforementioned legion.”.
However this is translated by the RIB website as dedicated to a senior centurion: