In 1624 Sir Horace Vere travelled once more to The Hague in order to second Prince Maurice in the defence of the fortress of Breda, under siege by Spinola from August. Maurice died on 23 April 1625. The only ways to approach the siege works from outside were by causeways. The new stadtholder, Maurice's brother, Frederick Henry, Prince of Orange, resolved to attempt the causeways, and Vere was selected to conduct this hazardous operation. Taking with him some six thousand men, including three hundred pikemen led by his kinsman, Robert de Vere, 19th Earl of Oxford, Vere started an hour before the dawn on the morning of 13 May 1625. The English marched along the dyke, and after a sharp engagement captured the redoubt. Spinola thereupon sent strong reinforcements to the threatened point, and, incurring a very heavy loss, the English were forced to retire. On his return to England that summer Vere, high in military reputation, was created Baron Vere of Tilbury.