Constantius intercepted his communication with the seaports of Gaul, and gently pressed his march towards the Pyrenees: [159] he passed the mountains, and surprised, in the name of the emperor, the city of Barcelona. The fondness of Adolphus for his Roman bride, was not abated by time or possession: and the birth of a son, surnamed, from his illustrious grandsire, Theodosius, appeared to fix him forever in the interest of the republic. The loss of that infant, whose remains were deposited in a silver coffin in one of the churches near Barcelona, afflicted his parents; but the grief of the Gothic king was suspended by the labors of the field; and the course of his victories was soon interrupted by domestic treason. He had imprudently received into his service one of the followers of Sarus; a Barbarian of a daring spirit, but of a diminutive stature; whose secret desire of revenging the death of his beloved patron was continually irritated by the sarcasms of his insolent master. Adolphus was assassinated in the palace of Barcelona; the laws of the succession were violated by a tumultuous faction; [160] and a stranger to the royal race, Singeric, the brother of Sarus himself, was seated on the Gothic throne. The first act of his reign was the inhuman murder of the six children of Adolphus, the issue of a former marriage, whom he tore, without pity, from the feeble arms of a venerable bishop. [161] The unfortunate Placidia, instead of the respectful compassion, which she might have excited in the most savage breasts, was treated with cruel and wanton insult. The daughter of the emperor Theodosius, confounded among a crowd of vulgar captives, was compelled to march on foot above twelve miles, before the horse of a Barbarian, the assassin of a husband whom Placidia loved and lamented. [162]