1446
January Candarli Pasa is freed from prison, with the promise he will fulfill every condition of the Christians (the loss of Western Bulgaria, Kosovo, Albania, Dobrudja and Epirus). At Edirne he is murdered by Mehmed II. The sultan resumes the fight. Orhan begins the siege of Bursa.
February Bursa surrenders and accepts Orhan II as Sultan. Mehmed II is forced to concentrate on Anatolia, leaving the provincial Balkan governors to deal with the Christians.
March Ivan Sishman II is defeated at Philipolis. Bulgaria is incapable of passing the Haemus Mountains. Thrace remains in Ottoman hands.
May The Venetians conquer Arta. Epirus is divided between Venetia, Moreea and Albania.
August Duradj Brancovic asserts himself in northern Kosovo, yet doesn’t become an official ally of the Christian Crusade. He demands Macedonia and the sovereignty over Albania in exchange for a full participation to the war effort. He is refused.
October Konstantine is defeated before the walls of Thessalonica. He manages to keep most of Thessaly, though. The year ends badly for the Christian forces, unable to move past the Haemus – Macedonia – Thessalonica line. Worst of all, Albania and Serbia are in a virtual state of war because of the Serbian claims.
1447
January Hungary and the Ottoman Empire conclude peace. The Ottomans recognize Bulgaria and Albania and accept the loss of southern Kosovo to Albania. Moreea remains in the war on the side of Orhan II.
April Orhan II is defeated at Bursa. He manages to escape to Byzantium but his power is virtually gone. The second civil war ends.
August Duradj Brancovic seeks the help of Mehmed II against Skanderbeg. The two states conclude an understanding: while Serbia wants southern Kosovo and some parts of northern Albania, the Ottomans desire the end of the Albanian warlord and the destruction of the Christian alliance. The war does not begin just yet, but Serbia is out of Hunyadi’s influence.
1448
February Mehmed II begins his campaign against Moreea. It’s his first presence on the military field. The Ottoman armies manage to retake most of Thessaly but they are stopped at Thermopile
May Mehmed II begins the siege of Constantinople. While he has fewer resources than in our OTL, his opponent is the weak-willed John VIII. Hunyadi forms plans for a new campaign, but he has problems in raising troops.
July Constantinople falls. John VIII is executed, alongside Orhan. The Christian world is shocked.
August Vlad Dracul dies. Vlad Tepes becomes Voivode of Wallachia.
September John Hunyadi begins a new campaign, this time against Duradj Brancovic, who asks for Mehmed II’s help. Vlachs, Bulgarians and Albanians begin to raid Ottoman territory.
November The battle of Nis. Hunyadi and Skanderbeg defeat Mehmed II and Duradj Brancovic. The war will end by next year without great territorial changes. While they lost a great deal of territory, the Ottomans managed to resist the Christians onslaught. On the other side Hunyadi created a network of allies against the Ottomans, keeping their expansion at bay.
What happened in the next years (1449-1601):
The Ottomans
Mehmed II concentrated against Anatolia, managing to take down Karaman in 1452 and Trebizond in 1454. In the war against Uzun Hassan (1461-1464), he managed to defeat him, while having to concede several territories in the west. He died in 1485 after a successful campaign against the Mameluks and the conquest of Syria, Cilicia and Lebanon. His son, Bayazid, moved the capital back to Bursa in an attempt to purify the religious make-up of the empire. He is most famous for his laws, but also for his alliance with the Crimean Horde. The Ottomans would become a second rate power after his reign, losing most of their Balkan territories in the 16th century and eventually Constantinople in 1601.
Hungary
Hunyadi died in 1462, in Macedonia. After his death, his son Matyas would become the leading general of the Christian troops in the Ottoman war of 1461-1464. As Voivode of Transylvania (1465-1472) he became estranged with Vladislav who made sure to assassinate him, an event that led to the famous Noble Rebellion (1473-1475). After Vladislav’s death in 1478, Hungary became a lead member of the Polish-Hungarian Commonwealth under the Jagiellonian Dynasty.
Albania
Skanderbeg died in 1469, after conquering Macedonia and Thessalonica. His large realm fractured after his death but Albania remained an important Balkan power and the main channel of Italian Renaissance in the region.
Wallachia
Vlad Tepes (reigned between 1448-1476) was the main figure associated with the war of 1461-1464, as well as the Noble rebellion of 1473-1475. During his reign he became hegemon of Bulgaria, Moldavia, Transylvania and a large part of Cossack Transdnester, while having a reputation of a madman, cruel, vicious ruler. His descendant Michael conquered Constantinople in 1601 consolidating the holdings of the Basarabs in the region. Apart from some regions, the realm remained in a wild and untamed state until the 18th century.
Moreea
A bit neglected until the 16th century, Moreea (or the Greek Kingdom) began seeing during the Mavrokordatos Dynasty (started in 1564) the return of their good luck. After securing Thessalonica and a large part of Thrace, the state would concentrate on naval power, making it eventually big on the colonial stage.
Serbia
Dominated by the Hungarian-Polish Commonwealth, Serbia had no bright future ahead. By 1550 the realm consisted of a patchwork of noble territories, squabbling over anything, with a king with no formal power.
Bulgaria
After Ivan Sishman II's death in 1458, Bulgaria accepted Vlad Tepes as czar. It would eventually become independent by the 19th century.