7 moments

1. Ceremonial appearance as co-emperor

   0253-01-01 · Rome, Italia, Roman Empire

   

   Gallienus made a ceremonial appearance in Rome during the year he became co-emperor with Valerian, connecting his accession to the imperial capital and Senate. The source supports a ceremonial appearance in Rome in 253 but does not give a more precise date.

2. Campaigns on the Rhine frontier

   0254-01-01 · Rhine frontier, Roman Germania

   

   Gallienus personally went to the Rhine as the frontier crisis worsened. These campaigns formed the principal western military activity of his early joint reign. The campaigns had begun no later than the second half of 254. Coordinates are a representative point on the central Rhine frontier near Mogontiacum (Mainz).

3. Defeat of Ingenuus

   0258-01-01 · Mursa, Pannonia Inferior, Roman Empire

   

   Gallienus personally defeated the usurper Ingenuus with Aureolus near Sirmium or Mursa during the Pannonian-Danubian crisis. The chronology and battlefield are disputed: the source places the revolt around 258 and gives Sirmium or Mursa as alternatives. Coordinates represent Mursa, near modern Osijek, Croatia.

4. Battle of Mediolanum

   0259-01-01 · Mediolanum (Milan), Italia, Roman Empire

   

   Gallienus commanded the Roman forces that defeated an Alemannic invasion near Mediolanum, helping secure northern Italy after the invaders' retreat. Coordinates are the article's stated location for Roman Mediolanum, corresponding to modern Milan.

5. Return to the imperial capital

   0260-01-01 · Rome, Italia, Roman Empire

   

   At the beginning of his sole reign, Gallienus returned to Rome after Valerian's capture. The visit accompanied his renewed consular role in 261. The source dates the return to the end of 260; no day or month is given.

6. Pursuit of the invading forces

   0267-01-01 · Thrace, Roman Empire

   

   During the Gothic and Herulian invasions, Gallienus pursued the invaders after his army won a battle in Thrace. The sources for this invasion sequence have substantial chronological uncertainty. The Wikipedia chronology places the invasions in 267–269 and explicitly notes that their dating and sequence are confused. Coordinates are a representative central-Thrace point.

7. Siege and assassination

   0268-09-01 · Mediolanum (Milan), Italia, Roman Empire

   

   Gallienus was at Mediolanum while besieging the rebel Aureolus. He was assassinated during the siege, ending a fifteen-year reign. The canonical article identifies Mediolanum as his place of death and dates it to September 268; its narrative states that he was murdered during the siege of the city.