Career
In the Senate, Apronius in 22 procured a decree of votive offerings should be made, due to the successful prosecution of Libo, who had engaged in subversive plotting against Tiberius. In 23 Apronius, along with a former proconsul of Africa Lucius Aelius Lamia vouched for innocence of one man, accused of supplying grain to Numidian insurgent Tacfarinas. However being a proconsul of Africa, Apronius by decimation severely punished the cohort of Legio III Augusta, previously defeated by Tacfarinas.
In 28, being a legatus of Lower Germany Apronius led the combined forces from Upper Germany in raising the siege of a Roman fort by the Frisii, only to be defeated by them soon after in a pitched battle at Baduhenna Wood.
