Bithynia et Pontus
The "Historia Augusta", whose testimony is not to be trusted unreservedly, paints Pupienus as an example of advancement through the cursus honorum due to military success. It claims he was the son of a blacksmith, was adopted by one Pescennia Marcellina (otherwise unknown), and who started his career as a "Centurio" "primus pilus" before becoming a Tribunus Militum, and then a Praetor. Pupienus's career was allegedly impressive, serving a number of important posts during the reign of the Severan dynasty throughout the late 2nd and early 3rd centuries. This included assignment as Proconsul of the senatorial propraetorial provinces of Bithynia et Pontus, Achaea, and Gallia Narbonensis.