By 589, Comentiolus appears to have served as magister militum in the province of Spania (southern Spain): an inscription bearing his name has been found in Carthago Nova, but it may have been erected by a namesake.
Pada tahun 589, Komentiolos tampaknya telah berfungsi sebagai magister militum di provinsi Spania (Spanyol selatan): sebuah prasasti yang bertuliskan namanya telah ditemukan di Carthago Nova, tetapi mungkin telah didirikan oleh senama.