Francis, on his side, used his knowledge of the current rumour to extract from Mary her confidences about Suffolk, and with this knowledge approached Suffolk as a friend. By alternately encouraging Suffolk and terrifying Mary he turned Wolsey's ambassador into an anxious lover. Still Wolsey trusted that Suffolk would the more bestir himself to bring Mary back, and would make such terms with Francis as would commend his suit to Henry. But Wolsey's enemies led Henry to make exorbitant demands, which Francis met by redoubling his persecution of Mary. At last she asked Suffolk to marry her, which he did in secret. After this Francis was free from any further need of conciliating Henry, who must take back his sister on any terms, and Wolsey was left to appease Henry as best he could. In April Mary and Suffolk returned to England, and in May the luckless pair were publicly married. Wolsey manfully befriended Suffolk in this matter, but the calculations of his diplomacy were hopelessly upset by private feelings and the rashness of passion. However, Mary received part of her dowry and some of her jewels. Francis I. had no wish to quarrel with England, but only to make the best terms for himself. He was bent upon gathering laurels in Italy, and on 5th April renewed the alliance between France and England. This time, however, the treaty was little more than a truce, and many questions were left untouched; no mention was made of the return of Tournai, and the question of Mary's jewels was left undecided. Francis I. counted on keeping England quiet by an alliance which he formed at the same time with Ferdinand, while he won over the Flemish counsellors of Prince Charles, who betrothed himself to the infant daughter of Louis XII., Renée, a child of four. Thus he had cleared the way for an expedition to Italy, where he longed to claim for France the Duchy of Milan, that had been won and lost by Louis XII. In July he set out contentedly, knowing that Henry was powerless to interfere. He treated England with neglect, and gave Henry no information of his movements. England looked on with growing jealousy while Francis crossed the Alps and in September defeated the Swiss mercenaries who held Milan in the name of the last Sforza Duke. The battle of Marignano (14th September) was a splendid success for Francis, who there beat back the Swiss infantry, hitherto considered invincible in Europe. The star of France had risen, and Francis could look round with proud superiority.