score:13
There were many reasons for an invasion:
These are however speculations.
In my opinion the intentions of Mehmet II were serious: the most important proof being that the commander of the expedition, Gedik Ahmed Pasha, was perhaps the best Ottoman general, with a crucial role in unifying Anatolia under Ottoman rule.
After conquering Otranto, because there was not enough food to sustain the occupying army, the Ottomans had to partially retreat to Albania, planning to start the operations again next year.
The death of the Sultan that same year however started a phase of instability, with his sons fighting over succession. Ahmed was forced to surrender as no reinforcements were sent. He never abandoned the idea of estabilishing a bridgehead in Italy, supporting one of Mehmet II sons, Bayezid, in return for support of his plan. Bayezid however did not trust Ahmed, and after having him imprisoned, he killed him in 1482.
Upvote:0
Sultan Mehmed had several reasons to invade Italy.
Upvote:3
You need to be aware that Sultan Mehmed II styled himself as a Roman Emperor after the conquest of Constantinople. Therefore, the original seat of the Empire, Rome, would be an attractive target. Besides the papacy was the principal enemy of Ottomans at that time. Later the target shifted to Vienna because successors were not so keen on classical Greek and Roman history as Mehmed II; and, more importantly, the principal enemy in the West became Habsburgs as the political power of Papacy weakened by the Reformation.