On Saturday the 4th of May, 1471, ere the bell of Tewkesbury Abbey tolled "the sweet hour of prime," or the monks had assembled to sing the morning hymn, King Edward was astir and making ready to attack the Lancastrians. Mounted on a brown charger, with his magnificent person clad in Milan steel, a crown of ornament around his helmet, and the arms of France and England quarterly on his shield, the king set his men in order for the assault. The van of the Yorkist army was committed to Richard, Duke of Gloucester, whose skill and courage on the field of Barnet had made him, at nineteen, the hero among those of whom, at thirty, he was to be the headsman. The centre host Edward commanded in person; and by the side of the royal warrior figured the ill-starred Clarence, never again to be fully trusted by his brother. The rear was intrusted to the guidance of Lord Hastings, and to Elizabeth Woodville's eldest son, Thomas Grey, Marquis of Dorset. Thus arrayed, flushed with recent victory over mighty adversaries, the Yorkist warriors, in all the pride of valor, and all the confidence of victory, prepared to advance upon their foes. Meanwhile, the Red Rose chiefs were not idle. Having encamped south of the town of Tewkesbury, on some rising ground, part of which is still known as "Queen Margaret's Camp," the Lancastrians appear to have made the most of their advantages. Defended as they were in their rear by the Abbey, and in front and on both sides by hedges, lanes, and ditches, they intrenched their position strongly, in the hope of keeping Edward at bay till the arrival of Jasper Tudor, who was believed to be rapidly approaching; and, at the same time, they left openings in their intrenchments, through which, should such a course seem expedient, they might sally forth upon the assailing foe. Their camp thus fortified, the Lancastrian leaders disposed the army of the Red Rose in three divisions. Of the first of these Somerset, aided by his brother, John Beaufort, took the command; the second was committed to the auspices of Edward, Prince of Wales, the Prior of St. John, and Lord Wenlock, who, having shared the Lancastrian defeat at St. Albans and the Yorkist triumph at Towton, had once more, in an evil hour, placed Queen Margaret's badge on his gorget; and the third was confided to the Earl of Devon, the youngest of three brothers, two of whom, after wearing the coronet of the Courtenays, had died on the scaffold for their fidelity to the Red Rose.