In the 5th Century BC, various Gaulish tribes, most notably the Lingones, Senoni and Boii, moved south into Italy, and sacked Rome in 390 BC. The Senoni utterly subjugated the Umbri and settled in Romagna. The Senoni extended further south to Ancona, with their capital "Sena Gallica" (Senigallia). The lands formerly inhabited by the Senoni were known as "ager Gallicus" (Gallic plain) to the Romans.