The two kings remained together at Messina till the end of March, 1191. During their stay Richard compelled Tancred, who had usurped the crown of Sicily, to relinquish the dower of his sister Joan, the widow of William, the late sovereign, and to pay him besides forty thousand ounces of gold. In return he betrothed his nephew, Arthur, the son of his next brother, Geoffrey, to Tancred's infant daughter, and formed a league offensive and defensive with the Sicilian king--a connection which afterward cost him dear, for it was the source of the enmity of the Emperor Henry VI., who had married Constantia, the aunt of William, and claimed the throne of Sicily in right of his wife. After the dispute with Tancred had been settled, the latent rivalry of Richard and Philip broke out in a quarrel about the Princess Adelais, whom her brother Philip insisted that Richard should espouse, in conformity with their betrothment, now that his father no longer lived to oppose their union. But if Richard had ever cared anything for the French princess, that attachment had now been obliterated by another, which he had some years before formed for Berengaria, the beautiful daughter of Sancho VI. (styled the Wise), King of Navarre; in fact he had by this time sent his mother Eleanor to her father's court to solicit that lady in marriage, and, his proposals having been accepted, the two were now actually on their way to join him. In these circumstances Philip found himself obliged to recede from his demand; and the matter was arranged by an agreement that Richard should pay a sum of ten thousand marks, in five yearly instalments, and restore Adelais, who had previously been conducted into England, and the places of strength that had been given along with her as her marriage portion, when he should have returned from Palestine. Richard, having sent his mother home to England, sailed from Messina on April 7th, at the head of a fleet of about two hundred ships, of which fifty-three were large vessels of the sort styled galleys; his sister, the queen dowager of Sicily, and the Princess Berengaria accompanying him. The King of France had set sail about a week before. Several months, however, elapsed before Richard reached the Holy Land, having been detained by an attack which he made upon the island of Cyprus; Isaac, the king, or emperor, of which had ill used the crews of some of the English ships that had been driven upon his coasts in a storm. Richard took Limasol, the capital, by assault; and that blow was soon followed by the complete submission of Isaac and the surrender of the whole island. Isaac was put into confinement, and remained a captive till his death in 1195. Meanwhile the island of Cyprus was made over by Richard, in 1192, to Guy of Lusignan, upon his resignation of the now merely titular royalty of Jerusalem to his rival Henry of Champagne and Guy's posterity reigned in that island till the year 1458.