The castle has had several incarnations in its long long history.

The previously wooden bridge and comparatively weak fortifications of the fortress were deemed as insufficient protection against modern pirates, plunderers and raiders which inspired King Alfonso V to set about creating the magnificent citadel.

In 1441 one of the most important events in the castle's history took place when it was connected to the land by the same stone bridge that still stands. In the middle ages the castle gained its current name due to the tenancy of the Aragonese royal family whom created much of the structure of the castle as it is seen today. Control of the rock-fortress changed hands between Neopolitan and Roman forces for many years with its strategic position in the region seen as vital for trade and protection of the island's resources. In the early days after its creation, the site comprised of two watch-towers to guard against attacks from enemy forces, while the sea surrounding it offered its greatest source of protection from any potential raids.

It dates back nearly 2,500 years when the original fortress was built by Hiero I, a tyrant from the Sicilian region of Syracusa. Castello Aragonese is a medieval castle located in Ischia Ponte and is perhaps the most iconic and intriguing of all Ischia's sights.

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