Herodian, II, XIV:
After spending a short time in Rome, during which he made generous gifts to the people, staged shows, and rewarded his soldiers lavishly, he chose for service in the imperial bodyguard, to replace the praetorians he had dismissed, the best-qualified soldiers from his army. He then set out for the East. 6. Since Niger was still delaying and wasting time in luxurious living in Antioch, Severus wished to surprise him before he was prepared. He therefore ordered his soldiers to be ready to march, and collected recruits everywhere, calling up the young men from the cities of Italy and enrolling them in the army. All the units of the army he had left behind in Illyricum were directed to march into Thrace and join him there. 7. He fitted out a naval unit; manning with heavily armed troops all the triremes in Italy, he sent these off too. He got ready a large and powerful force with incredible speed, aware that he would need a large army to operate against Niger and the entire continent lying opposite Europe.
III, I:
When Niger learned that Severus had occupied Rome, had been proclaimed emperor by the senate, and was leading the entire army of Illyricum against him, supported by the rest of the infantry and a naval unit as well, he was greatly disturbed by these unexpected developments.
Es könnte aber auch eine Bezugnahme auf den Feldzug gegen die Parther sein:
III, IX:
The army, sailing in a large number of ships, was not borne to its intended destination on Roman-held shores, but after the current had carried the fleet a great distance, the legions disembarked on Parthian beaches at a spot within a few days' march of the road leading to Ctesiphon, where the royal palace of the Parthians was located.
Da die römische Geschichtsschreibung (wie überhaupt vermodernde Geschichtsschreibungen) sehr herrscherhauszentriert ist, muss man damit rechnen, dass die Münzen als Quellen als einzige von dem Beitrag der Stadt Korkyra zu den Feldzügen Septimius‘ berichten. Die Zeitgenossen werden gewusst haben, um welchen Feldzug es sich handelte. Wir müssen uns aber mit der unzureichenden Quellenlage zufriedengeben.
