On the death of the Emperor in 1448 the Despot Constantine succeeded to the imperial title; and it is a picturesque fact that the last Emperor of Constantinople was crowned at Mistra, where his wife still lies buried, near that ancient Sparta which had given so many heroes to Hellas. His previous government was bestowed on his youngest brother Demetrios, with the exception of Patras, which was added to the province of Thomas. The new partition took place in Constantinople, where the two brothers solemnly swore before God and their aged mother to love one another and to rule the Morea in perfect unanimity. But no sooner had they arrived at their respective capitals of Mistra and Patras than they proceeded to break their oaths. Thomas, the more enterprising of the two, attacked his brother; Demetrios, destitute of patriotism, called in the aid of the Turks, who readily appeared under the leadership of Turakhan, made Thomas disgorge most of what he had seized, and on the way destroyed what remained of the Hexamilion. The object of this was soon obvious. As soon as the new Sultan, Mohammed II, was ready to attack Constantinople, he ordered Turakhan to keep the two Palaiologoi busy in the Morea, so that they might not send assistance to their brother the Emperor. The old Pasha once again marched into the peninsula; but he found greater resistance than he had expected on the Isthmus. He and his two sons, Achmet and Omar, then spread their forces over the country, plundering and burning as they went, till the certainty of Constantinople’s fall rendered their presence in the Morea no longer necessary. But as Achmet was retiring through the Pass of Dervenaki, that death-trap of armies, between Argos and Corinth, the Greeks fell upon him, routed his men and took him prisoner. Demetrios, either from gratitude for Turakhan’s recent services to him, or from fear of the old warrior’s revenge, released his captive without ransom. It was the last ray of light before the darkness of four centuries descended upon Greece.