Turahan Bey Turahan Bey or Turakhan Beg ( ; ; ; died in 1456 ) was a prominent Ottoman military commander and Ottoman governor of Thessaly from 1423 until his death in 1456 . He participated in many Ottoman campaigns of the second quarter of the 15th century , fighting against the Byzantines as well as against the Crusade of Varna . His repeated raids into the Morea transformed the local despotate into an Ottoman dependency and opened the way for its conquest , and his administration of Thessaly , where he settled new peoples , founded the town of Tyrnavos and revitalized the economy , set the groundwork for Ottoman rule in the area for centuries to come . Life . Nothing is known of his birth date or early life , except that he was the son of Pasha Yiğit Bey , who conquered Skopje in 1392 and was the first Ottoman governor of Bosansko Krajište . He is first mentioned in 1413 as governor of Vidin , and then again in 1422 , when he fought against the Byzantine governor of Lamia , Kantakouzenos Strabomytes . He was one of the supporters of Mustafa Çelebi during the latter ' s struggle against Mehmed I and Murad II . He became governor of Thessaly in early 1423 , and led his first major expedition in May – June of the same year , against the Peloponnese peninsula in southern Greece . His cavalry breached the recently rebuilt Hexamilion wall on 21 / 22 May and ravaged the interior of the peninsula unopposed . He attacked some Byzantine towns and settlements like Mistra , Leontari , Gardiki and Dabia . Aside from the plunder , the expedition was also probably a reconnaissance mission ultimately aimed against Venetian possessions in the area , as Venice was the main driving force behind attempts to unite the various Christian rulers of Greece against the Ottoman advance . Soon after , the Byzantine historian Doukas reports Turahan ' s presence on the shores of the Black Sea . At about the same time , he also campaigned in Epirus , defeated local Albanian tribes and made them tributary to the Ottoman state . In the 1430s along with Ali Beg and Ishak - Beg he participated in the campaigns that suppressed an Albanian revolt , led by Gjergj Arianiti and Andrew Thopia . Despite the devastation visited upon the Peloponnese , Turahan ' s 1423 expedition was only a raid , and the Byzantine Despots of the Morea were able to restore their position and gradually over the next few years bring the entire peninsula under their control . In 1431 however Turahan again breached and destroyed the Hexamilion and took Thebes in 1435 , to prevent it from falling into the hands of the Moreot Byzantines . The Despotate of the Morea , under the constant threat of renewed Turkish invasion clung on to a precarious independence only through continuous gifts and tribute to Turahan . In November 1443 Turahan participated in the Battle of Niš against John Hunyadi , which ended in an Ottoman defeat . During their retreat from Niš , Turahan Bey and Kasim Pasha burned all villages between Niš and Sofia . Turahan persuaded Sultan Murad II to abandon Sofia as well , and follow a consequent scorched earth strategy against the Hungarian advance . Although the Hungarians were badly mauled in the Battle of Zlatitsa , in a subsequent action at Dragoman Pass they were able to capture Mahmud Bey , the Sultan ' s son - in - law , creating the impression of an overall victorious campaign . Turahan fell from favour as a result and was banished by the Sultan to a prison in Tokat . He was soon restored to his position however , as he was present in Murad ' s 1446 campaign against the Morea . Murad was reportedly disheartened by the strength of the Hexamilion , but Turahan insisted on an assault . Aided by an artillery bombardment , the Ottomans again breached the Byzantine defences and ravaged the Peloponnese at will . The Morea was now officially reduced to an Ottoman vassal state . In early October 1452 , Turahan and his sons Ahmed and Ömer led a large force into the Peloponnese . Sultan Mehmed II ordered them to remain there during the winter in order to prevent despots Thomas and Demetrios from assisting their brother Constantine during the Siege of Constantinople in 1453 . Turahan again stormed the Hexamilion and penetrated into the Morea , raiding from Corinth through the Argolid and Arcadia to Messenia . The Byzantines put up little resistance after Hexamilion , although Turahan ' s son Ahmed was captured in an ambush at Dervenakia and imprisoned in Mistra . The fall of Constantinople on 29 May 1453 had great repercussions in the Morea . The two despots , the brothers Demetrios Palaiologos and Thomas Palaiologos , heartily detested each other and were unpopular among their own subjects . A rebellion broke out against them in autumn , supported both by the local Albanian immigrants and the native Greeks , and spread quickly . As the Sultan ' s vassals , the despots called upon Turkish aid , and Turahan ' s son Ömer arrived in December . After a few successes , he departed after securing the release of his brother from captivity . The revolt did not subside , and in October 1454 Turahan himself was forced to intervene . After sacking a few fortresses , the rebellious populace capitulated . Turahan advised the two Palaiologoi to compose their differences and rule well , and then departed the peninsula . The two brothers were however unable to reconcile themselves , and soon reverted to quarrelling and conspiring with Western powers against the Sultan . In retaliation , Mehmed II campaigned in the Morea in 1458 and seized the northwestern half of the country , which became an Ottoman province under Ömer . The rest of the despotate followed in 1460 . Turahan himself was recalled to Adrianople in October 1455 and died ca . August 1456 . He was buried at Kirk Kvak near Uzun Köprü in Thrace , but his memorial tomb ( " türbe " ) survives to this day in the city . His descendants , the Turahanoğlu , were wealthy landowners in Thessaly until the end of the Ottoman rule there in the late 19th century ; with the exception of his sons however , they did not rise to any wider prominence . Legacy . Turahan Bey ranked among the great , practically semi - autonomous Ottoman " marcher - lords " ( " uç beyi " ) of the 15th - century Balkans , along the likes of Gazi Evrenos . He was instrumental in the establishment of Ottoman rule in Thessaly and central Greece in general . Aside from his campaigns of conquest , he brought in 5 , 000 Turkish settlers ( Yörük s and Koniars ) whom he settled in a string of twelve villages across the province to strengthen Ottoman military control . In addition , according to Turahan ' s Arab - language biography , which the Scottish traveller David Urquhart reported to be still extant in the 1830s in Tyrnavos , he was also the first to institute a Greek militia for the lawless mountainous regions of central Greece , the forerunners of the later " Armatoloi " . Turahan also took several measures to restore order and prosperity in his province , most notably the foundation ( or re - foundation ) of the town of Tyrnavos , which before was a small pastoral settlement . To attract and protect the local Greek Orthodox population , he granted it special privileges , such as special administrative status as a " waqf " ( a religious endowment ) of the Sharif of Mecca , tax exemptions and the prohibition of Ottoman troops from passing through the town . He also endowed it with both a mosque ( destroyed after the Greek annexation of Thessaly in 1881 ) and a church , St Nicholas Turahan , which survives to this day . Turahan also endowed many other public buildings such as mosques , monasteries , madrasa s , schools , caravanserai s , bridges and baths across the province . He also took care to maintain and foster the Thessalian cotton , silk and wool textile industry , to the extent that later generations attributed to him the introduction of new dye techniques based on yellow berries , madder and the kali plant , used in the manufacture of potash . From there these materials spread to the rest of Rumelia and thence to Western Europe . Family tree . After Franz Babinger in the " Encyclopedia of Islam " :