Background

The Gepids had held the important city of Sirmium (now Sremska Mitrovica, Serbia) since 536, after taking it from the Byzantine emperor Justinian I. By 549, the Gepids were at war with the Lombards. The Lombards requested and received help from Justinian I in the form of 15,000 troops. This was a relatively large force, and the Gepids quickly came to a truce with the Lombards, but only while the Byzantine soldiers were in the area. There was, more or less, a long feud between the peoples of Thurisind and Audoin, then king of the Lombards.

Rule

Cunimund succeeded Thurisind as king. According to multiple sources,^{[citation needed]} the former king had been Cunimund's own father, and the enmity that both had for the Lombards was allegedly partly a result of Alboin's murder of Cunimund's brother (Thurisind's son), Turismod.

Open war with the Lombards, now led by Alboin, began again in 565. Cunimund appealed to the new Byzantine emperor, Justin II, for help and promising Sirmium in return. Justin accepted, and the Gepids had a temporary advantage, even though Cunimund failed to release Sirmium after all.^{[citation needed]}

The Lombards later formed an alliance with the Avars. Cunimund made the same offer to Justin II as he had before, and this time when Justin accepted, the Gepid king handed Sirmium over to the Byzantines. As it turned out, however, the Byzantine troops neglected to join the Gepids in their fight but kept Sirmium, and although the Avars did not show up either, the Lombards soundly defeated Cunimund's forces in 567. According to the writings of Paul the Deacon, Alboin killed the defeated king and had his skull converted into a drinking cup known as a scala or patera. But, Lombards were forced going to Italy by Avars in 568. Thus, territories of Gepid Kingdom were ruled by them.^{[citation needed]}

After the Gepids’ defeat, Alboin forced Cunimund’s daughter Rosamund into marrying him. Paul the Deacon reports that, during a feast in Verona, Alboin asked Rosamund to have a drink with her father, actually forcing her to drink from his skull. Humiliated, Rosamund later got her revenge by having Alboin murdered in his sleep.^[1]