 Complete the following phrase:  Graitzas however and a number of defenders still held out in the citadel. As a condition for surrendering it, he demanded free passage of his men. Mehmed accepted and departed unmolested for Aigio, leaving a certain Hamouzas as governor of the Peloponnese and Thessaly, and to oversee Graitzas departure. Hamouzas disregarded the agreement, however, and arrested the first men who tried to leave the citadel. Informed of this, Mehmed replaced him with Zaganos Pasha and left the Peloponnese. However, Zaganos too renewed the siege of the citadel. Graitzas then attempted a sortie, and managed to break through and find refuge in the Venetian-held fortress of 