He was with the large army taken across the channel to France in 1492, in the flotilla under the command of Lord Willoughby de Broke, which was apparently designed, but really never intended, to assist the Emperor Maximilian. The Marquis also held a command in the royal forces in 1497, at the defeat of the Cornish insurgents on Black-Heath.

It is probable also he accompanied Henry into the west, at the suppression of Perkin Warbeck's attempt in October of the same year. Respecting this Mr. Davidson writes,—

"The king left Exeter on 3 November, and passed the night at the College of St. Mary, at Ottery, and on the next day proceeded to Newenham Abbey. At this place the king remained nearly a week until the 10th, when he resumed his progress to London. It is difficult indeed to imagine for what reason the king remained so long a time at Newenham at this period, unless he was engaged in making enquiry for such of the men of consideration in the Counties of Devon and Somerset as had taken part with the rebels, and in appointing the commissioners for detecting them. Among those commissioners the name of Sir Amias Paulet appears, whose residence in Somersetshire was at no great distance from this place. It may be conjectured also, that the king was entertained by the lord Marquis of Dorset, at his manor and mansion of Shute, which is nearly adjoining the Abbey demesnes, for this nobleman appears to have been on terms of familiar intercourse with his sovereign. The following items appear in the king's privy purse expenses;—'1492, 7 July. To my lord Marquis for a ring of gold, £100.—1495, March 20.—Loste at the buttes to my lord Marques £1.'"

Four years after Warbeck's rebellion, on the 10 April, 1501, the Marquis died; by his will, without date, he "bequeathed his body to be buried in his College at Astley, before the image of the Blessed Trinity, in the midst of his closet, within the same College; and that his executors should cause to be said for his soul, in every of the four orders of Friars in London, a hundred masses, and at the time of his burial, one hundred marks to be distributed in alms to the poor people."

On a boss over the organ-gallery in St. George's Chapel, Windsor, are the arms of the Marquis, quarterly of eight:—1. Barry of six argent and azure, in chief three torteaux (Grey).—2. Or, a maunche gules (Hastings).—3. Barry of ten argent and azure, an orle of martlets gules (Valence). Over these three quarterings a label of three points ermine—4. Gules, seven mascles, three, three, and one, or (Quincy).—5. Azure, a cinquefoil ermine (Astley).—6. Argent, a fess and a canton gules (Widville).—7. Sable, six mullets argent, pierced gules (Bonville).—8. Sable, a fret argent (Harington).

On his banner he bore the same quarterings. The "tenan," an unicorn ermine. His standard, per fess white and murrey. The badges are "bunches of daisies, tufted proper" (this from Widville). The motto, "A MA PUISSANCE" (Willement).

Cicely Bonville, Marchioness of Dorset, married secondly Henry Stafford, second son of Henry Stafford, second Duke of Buckingham (by his wife Catherine daughter of Richard Widville, Earl Rivers), who, rising in revolt against Richard III., was beheaded at Salisbury, 1483.

He was created Earl of Wiltshire by Henry VII., in 1509, and constituted a Knight of the Garter by the same monarch, being the two hundred and fifty-eighth on the roll of the Order.

The Marchioness of Dorset was his second wife. His first was Muriel, daughter of Sir Edward Grey,—created Viscount L'Isle, 1483,—brother to Sir John Grey, father of the Marquis of Dorset, and therefore cousin to the Marchioness's first husband. The Earl of Wiltshire left no issue by either of his wives. He died 6 March, 1523, when his title became extinct.

On a boss in the vaulting of the choir of St. George's Chapel, Windsor, is his badge, a Stafford knot argent, differenced by a crescent sable, and on a stall-plate below are his arms, quarterly:—1. France and England within a bordure argent (Plantagenet).—2. Bohun.—3. Stafford.—4. Bohun, Earl of Northampton; there are no supporters. The crest, in a ducal coronet, per pale sable and gules, a demi-swan argent, beaked gules, the wings endorsed. Motto, ""HUMBLE ET LOYAL" (Willement).