 From their towers in Kastania they attacked Ottoman lands and caused much damage.The pasha of the Peloponnese, Cezayirli Gazi Hasan Pasha, was preparing his invasion of Mani and decided that it was necessary to exterminate the Kastania menace.When his fleet arrived at Gytheio he sent 10,000 men under the command of his second in command, Ali Bey, to deal with them.