After the recapture of Constantinople by the Greeks, the value of the island became greater than ever to the Venetians. Three years after that event we find the Doge Zeno writing to Pope Urban IV that “the whole strength of the Empire” lay in Crete, while at the same time the revival of the Greek cause, both on the Bosporos and in the Morea, led to an attack upon it by the Byzantine forces. But Venice had less difficulty in coming to terms with the Emperor than in managing her unruly subjects. In 1268 the Venetian colonists rose under leaders who bore the honoured names of Venier and Gradenigo, demanding complete separation from the mother country. The harsh policy of the Republic towards her colonies was an excuse for this outbreak; but no further attempt of the kind was made for another hundred years, when the descendants of the Venier and the Gradenigo of 1268 headed a far more serious rebellion. Another Greek rising now followed, this time organised by the brothers Chortatzai, but the Venetians had now succeeded in winning over a party among the Cretans, including Alexios Kallerges, the richest of all the _archontes_. This man used all his local influence on the side of the Government; yet even so the rebellion continued for several years, and at times threatened to gain the upper hand. One Venetian Governor was lured into the mountains, surprised, and slain; another was driven behind the walls of Candia, and only saved from capture by the fidelity of the Greek inhabitants of that district. At last adequate reinforcements arrived, the Chortatzai were banished from the island, and the castle of Selino was erected to overawe the rebels in their part of the country. Peace then reigned for a few years, and the conciliatory policy of the next Governor earned for him the title of “the good” Duke from the Cretan subjects of the Republic.