Constructed in 830 a fortified enceinte, called Gregoriopolis, in the eastern portion of the ancient city, and the Saracens were signally defeated here under Leo IV.
The king, however, remained true to him, and all the conspiracies signally failed.
All this is signally shown in the history both of Venice and of other aristocratic cities.
He seems to have been signally successful.
The Sixth Crusade (1228-1229) succeeded as signally as the Fifth Crusade had failed; but the circumstances under which it took place and the means by which it was conducted made its success still more disastrous than the failure of 1221.