Publius Quinctilius Varus, general of the ill-fated Seventeenth, Eighteenth and Nineteenth Legions, in camp along with one of his officers and Arminius, a commander of the German cavalry, soon to betray Varus and the other Romans to their terrible fate. Arminius' father-in-law, Segestes, a German chieftain who was loyal to Rome, tried to warn Varus of Arminius' treachery, to no avail.