Today in European history: the Siege of Thessaloniki ends (1430)

The city of Thessaloniki always struck me as the urban equivalent of the line “always a bridesmaid, but never a bride” (Hare Trimmed was a comedy classic, don’t @ me). It became the most important city in Macedonia…right before the Romans showed up. It’s the second-largest city in Greece. It became an important Roman city…because it was a way point on the main route from Rome to Byzantium. When the Roman Empire was divided into the Tetrarchy in the third century, it became one of the capitals of the Emperor Galerius…right before Constantine ended the Tetrarchy and established a New Rome at Byzantium/Constantinople. It was the “second city” of the Byzantine Empire. Today it’s the second largest city in Greece. You get the idea. Nonetheless, Thessaloniki has been an important city since antiquity, and when the Ottomans began expanding into Europe it was one of their earliest targets.

In fact, the Ottomans took Thessaloniki in 1387, and might have been the growing empire’s main European possession…if the Ottomans hadn’t up and lost almost everything at the Battle of Ankara in 1402. In the Ottoman civil war that followed Ankara, the Byzantines were able to finagle the city back in return for supporting the imperial claims of Süleyman Çelebi (d. 1411). But the temporary Ottoman chaos masked the fact that, even after Timur had taken their empire completely apart, the Ottomans were still stronger than whatever was left of the Byzantine Empire by the early 15th century.

When Mehmed I (d. 1421), rather than Süleyman Çelebi (way to back the wrong horse, guys!), emerged from the interregnum in 1413 as the ruler of a once-more unified Ottoman principality, the Byzantines very quickly found themselves back behind the proverbial eight ball. Things could have gotten dicey as early as 1416. See, after Mehmed had defeated his three brothers and established his rule in 1413, yet another brother, Mustafa Çelebi (d. 1422), came home from Central Asia (he’d been taken prisoner by Timur at Ankara and carted off to Samarkand) thinking he and Mehmed should at least split the kingdom between them. Mehmed disagreed, and the two men and their armies met in battle. When Mustafa lost, he hightailed it to Thessaloniki in 1416 and hid there. Mehmed could have besieged the city at that point, but instead he did a deal with Byzantine Emperor Manuel II Palaiologos (d. 1425) to keep Mustafa in exile on the island of Lemnos.

 

ii-_murat
Murad II (Wikimedia)

Taking Mustafa in bought the Byzantines a little time, but it also–as far as they were concerned–bought them control over somebody who could genuinely become the new Ottoman ruler when Mehmed died. Which he did, in 1421, with the intention that he be succeeded by his son, Murad II (d. 1451). The Byzantines, of course, wanted their captive on the throne, and so they released Mustafa from his exile and brought him to the mainland, where he was able to recruit an army and capture Adrianople (modern Edirne), the Ottomans’ European capital. At this point, though, Mustafa got a little big for his britches, tried to invade Anatolia, and, well, long story short, Murad had him executed in the spring of 1422. Way to back the wrong horse a second time, guys!

Map - Ottomans to 1512 2
You can see Thessaloniki (here “Saloniki”) in the northern Greece area

At this point Murad vowed to crush the Byzantine Empire in revenge for the aid they’d given Mustafa. That vow would actually be fulfilled by his son, Mehmed the Conqueror, but Murad certainly did his share. His armies besieged both Constantinople and Thessaloniki, and while Constantinople held (for now), it wasn’t in any position to respond to Thessaloniki’s desperate pleas for assistance. Thessaloniki was at this point ruled autonomously by a Byzantine royal cousin, Andronikos Palaiologos, whose grip on the city began to slip as the people, aware that their emperor wasn’t going to send any help, demanded that he surrender to the Ottomans. In lieu of surrendering, though, Andronikos decided to try something else–he sold the city to Venice.

The Venetians were looking to expand and to take a more aggressive stance against the Ottomans in the eastern Mediterranean, plus they had the money to make it worth Andronikos’s while, so they were the perfect choice to purchase Thessaloniki and take over its defense. Emperor Manuel was asked to give his assent, and, really, what the hell was he going to do? He was in no position to object. Venice also sent a messenger to the Ottomans, asking them to lift their siege and allow the Venetians to move into the city…and he was promptly thrown in one of Murad’s prisons. I guess that was a “no.” Murad seems to have felt that Thessaloniki was his by right, because it had been an Ottoman possession before Ankara and had only been returned to the Byzantines by an illegitimate pretender to the Ottoman throne, and in fact the Byzantine historian Doukas has him say as much to Venetian envoys.

The Ottomans besieged Thessaloniki for the next ~6 years, while the Venetians, who knew they couldn’t win a pitched battle and really couldn’t even do much to impede Ottoman supply lines, tried to negotiate terms under which they could assume control over the city in return for some kind of tribute payment to the Ottomans. In addition, they tried to harass the Ottomans asymmetrically, by sending fleets to strike periodically at Gallipoli (where Ottoman reinforcements and supplies were vulnerable as they crossed the Dardanelles), by trying to bribe/cajole other principalities in the Balkans/eastern Mediterranean to fight the Ottomans for them, and by trying to rally support in Catholic Europe for a Crusade. This last part never came to fruition (the Venetians were more interested in warring with Catholic Hungary than joining forces with them), and the other bits just weren’t enough to dislodge the Ottoman siege. Efforts to get even small numbers of Venetian soldiers and supplies into the city to help support the defense generally were unsuccessful.

By the late 1420s the people inside Thessaloniki–who never really had any input on being sold to Venice, remember–were starving. Soldiers began defecting to the Ottomans while on guard duty, just so they’d get to eat again. The frequent messages from Greek leaders of the city to Venice grew angrier, seeing that Murad was content to wait until they all starved to death and simply walk in and take the city, and that all these Venetian efforts to negotiate a deal with him were completely futile. They urged the Venetians to surrender the city, which was inevitably going to fall to the Ottomans anyway, before everybody inside was dead. The Venetians, we’re told, responded to these missives by recruiting a force of soldiers inside the city whose job was to kill anybody caught advocating for surrender. Nice.

In late March 1430, Murad assembled his army before the walls of the city and demanded its surrender. The city didn’t surrender, amazingly, so Murad (who was apparently now tired of waiting) made plans to storm the walls. The assault began on the morning of March 29, and within a few hours the depleted city was in Ottoman hands. The Venetians quickly cut a peace deal with the now very amenable Murad. Thessaloniki was heavily damaged by the days of looting that followed, by a conscious imperial effort to strip the city’s wealth and bring it back to Edirne, and, well, by the siege itself, which left only a few thousand people alive when it finally ended. After the initial wave of destruction passed, though, Murad had the city rebuilt and repopulated, and it remained one of the major cities of the empire until it was captured by Greece during the First Balkan War in 1912.

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Author: DWD

writer, blogger, lover, fighter

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