Answer:
Step-by-step explanation:
Emperor Leopold I took several actions to defend Vienna from the Ottoman attack. According to the search results, he initially tried to seek assistance from other European powers, including appealing to Louis XIV of France, but was unsuccessful in gaining their support. He then turned to Poland and formed an alliance with King John III Sobieski. As part of the alliance, Sobieski led a combined force of Austrian, German, and Polish troops to Vienna's defense.
To prepare for the Ottoman attack, Emperor Leopold I ensured that the city was well-fortified and equipped to withstand a siege. Vienna's defenses were strengthened, and the city was adequately supplied to sustain a long-term siege.
When the Ottoman forces laid siege to Vienna, Emperor Leopold I and his troops defended the city bravely. However, as the situation became more critical, he sent dramatic appeals to Poland for help and to Pope Innocent XI for support in the defense of Christianity.
Emperor Leopold I's actions included forming alliances, fortifying the city, and making desperate appeals for assistance. These efforts, alongside the leadership of King Sobieski and the combined army, ultimately resulted in the successful defense and liberation of Vienna from the Ottoman forces.