He was honoured by an inscription from Patavium, and was probably the father of Attius Insteius Tertullus Populonius, imperial governor of Apulia and Calabria.
A monument in his honor was erected by Patavium, and he is believed to have been the father of Attius Insteius Tertullus Populonius, who held administrative positions in Apulia and Calabria under the empire.