And this was the opinion of Farnese, but he had chosen throughout the campaign to show great deference to the judgment of Mayenne. Meantime the month of March wore away, and what had been predicted came to pass. Henry's forces dwindled away as usual. His cavaliers rode off to forage for themselves, when their battles were denied them, and the king was now at the head of not more than sixteen thousand foot and five thousand horse. On the other hand the Leaguers' army had been melting quite as rapidly. With the death of Pope Sfondrato, his nephew Montemarciano had disappeared with his two thousand Swiss; while the French cavalry and infantry, ill-fed and uncomfortable, were diminishing daily. Especially the Walloons, Flemings, and other Netherlanders of Parma's army, took advantage of their proximity to the borders and escaped in large numbers to their own homes. It was but meagre and profitless campaigning on both sides during those wretched months of winter and early spring, although there was again an opportunity for Sir Roger Williams, at the head of two hundred musketeers and one hundred and fifty pikemen, to make one of his brilliant skirmishes under the eye of the Bearnese. Surprised and without armour, he jumped, in doublet and hose, on horseback, and led his men merrily against five squadrons of Spanish and Italian horse, and six companies of Spanish infantry; singled out and unhorsed the leader of the Spanish troopers, and nearly cut off the head, of the famous Albanian chief George Basti with one swinging blow of his sword. Then, being reinforced by some other English companies, he succeeded in driving the whole body of Italians and Spaniards, with great loss, quite into their entrenchments. "The king doth commend him very highly," said Umton, "and doth more than wonder at the valour of our nation. I never heard him give more honour to any service nor to any man than he doth to Sir Roger Williams and the rest, whom he held as lost men, and for which he has caused public thanks to be given to God." At last Villars, who had so peremptorily rejected assistance at the end of February, sent to say that if he were not relieved by the middle of April he should be obliged to surrender the city. If the siege were not raised by the twentieth of the month he informed Parma, to his profound astonishment, that Rouen would be in Henry's hands.