Complex sentence: In 408 the Vandals sacked the city and forced the peasantry to move to the citadel and in 585 the Burgundians, led by Guntram, entirely razed the site in the course of their pursuit of Gundoald.
Split into simpler sentences: In 408 the Vandals sacked the city and forced the peasantry to move to the citadel. In 585 another Germanic invasion, by the Burgundians under king Guntram, entirely razed the site in the course of their pursuit of Gundoald.