COMES DOMESTICORVMiRole name: COMES DOMESTICORVM of Gallus Caesar a. 351/4: comes, qui sub eo (sc. Gallus) domesticis praefuit Amm. XIV 11.19, dum domesticos protectores sub Gallo regeret Caesare, proditor erat et perfidus Amm. XVIII 3.6, qui in eum iamdiu falsa composuerat crimina Amm. XIV 11.24; Libanius Ep. 436 speaks of him as having held an important office at Antioch (τῶν μεγίστων ἐπεστάτεις). He was apparently succeeded by Lucillianus 3 and went to Constantius, who sent him to arrest Gallus at Poetovio on his journey westwards, from where he conducted him to Pola Amm. XIV 11.19ff. (styled comes in §19), Philost. HE IV 1 (τὴν στρατηγικὴν ἔχων ἀρχήν).

MAGISTER PEDITVMiRole name: MAGISTER PEDITVM a. 355-9: Barbatio post Silvani interitum (in 355) promotus ad peditum magisterium Amm. XVI 11.2; in 356 he was ordered to operate in Gaul with 25,000 men in support of Julian, but proved uncooperative Amm. XVI 11.2.6-8.12, Lib. Or. XVIII 49ff., and sent false reports against Julian Amm. XVI 11.7 magister peditum ignavus et gloriarum Iuliani pervicax obtrectator, 15; defeated by the Alamanni, he retreated to Rauraci and returned to Constantius’s court Amm. XVI 11.14-15, cf. XVI 12.5 and 16; in 358 Raetia was invaded by the Juthungi, ‘ad quos repellendos cum valida manu missus ´ Barbatio, in locum Silvani peditum promotus magister, ignavus sed verbis effusior’ Amm. XVII 6.2; while magister peditum he received from Libanius Ep. 436 (a. 355), 491 (a. 356) (congratulations on his victories) and also Ep. 556, 576 (a. 357); in 359 Arbitio obtained an indiscreet letter written by Assyria, Barbatio’s wife, and both were condemned and executed Amm. XVIII 3.1-4, cf. XIV 11.24; he was succeeded by Vrsicinus 2 Amm. XVIII 5.5, cf. XX 2.1.

He is described by Ammianus XVIII 3.6 as ‘subagrestis adrogantisque propositi, ea re multis exosus quod et dum domesticos protectores sub Gallo regeret Caesare proditor erat et perfidus et post eius excessum, nobilioris militiae fastu elatus, in Iulianum itidem Caesarem paria confingebat crebroque detestantibus bonis sub Augusti patulis auribus multa garriebat et saeva’; he was apparently granted the property of Silvanus or part of it Amm. XVIII 3.2.