In the disturbances that followed the fall of Stilicho, wives and children of "foederati" living in the cities of Italy were killed. Most of the "foederati", regarded as loyal to Stilicho, joined the forces of Alaric I, King of the Visigoths. Alaric led them to Rome and put it under siege, with minor interruptions, from autumn 408 to August 24, 410. Zosimus records that Placidia was within the city during the siege. When Serena was accused of conspiring with Alaric, "the whole senate therefore, with Placidia, uterine sister to the emperor, thought it proper that she should suffer death".