These events took place one year after the death of King Chilperic in 584.
The phrase in ore gladii comes from Josh 6:21.
King Guntram's forces were commanded by Leudegisel, who was serving as the rector of Provence in King's name. Comminges was occupied by Gundovald, a pretender to Guntram's throne, and his supporters. The city was sacked, even though Gundovald was at that time already dead.