Ottoman Victory: 1529

In this alternate history, the POD is set during the Siege of Vienna by the Ottoman Turks in 1529 (Not to be confused with the one in 1683). In real life, the battle was a decisive Austrian victory which prevented Austria's complete annihilation by the Ottomans. However, in this alternate history, the Ottomans win a Pyrrhic victory at Vienna and continue their offensive against Austria.

The Siege of Vienna
After a long march towards the city, on the 27th of September the Ottomans besieged Vienna. While initially weather and strong defences by the Austrians hindered the Ottomans, by January of 1530, reinforcements arrived and the force besieging the city grew from 120'000 to 180'000. The Ottomans tactics mostly involved attempting to sabotage the cities wall defences, including mines and digging tunnels beneath the walls. Suleiman's plan was to continue this until they managed to break through, however in late Febuary he recieved news of a potential Austrian counter-attack that could crippled the besieging force.

Needing to capture the city, Suleiman ordered cannon-fire be centered towards the already-damaged points of Vienna. Heavy snow hindered his efforts, and at one point Suleiman was even forced to halt his attack in order to prevent his cannons and soldiers from freezing. However, in on March 11th, using a mix of his original tactics and concentrated cannon-fire, the Ottoman's broke through the walls and stormed the city, killing the garrison and occupying Vienna.

Immediate Aftermath
The immediate aftermath of the Siege was a devestating blow to Austrian morale. Suleiman used this to his advantage, and in the following months branched out his army and won several more decisive victories, most notably in Linz, were 34'000 Ottoman troops defeated the Austrians largest army of 32'000. After these offensive's, the Hasburg monarchy had no choice but to surrender.

During initial negotiations, the Hasburg's offered all territories south of Vienna. However, the Ottomans insisted that Vienna is given to them. This led to a major diplomatic impass, which wasn't resulted a month later, time in which the Ottomans managed to expand to Austria's northernmost territories.