What if Andalusians never conquered Ingiliya and Ayriya, preventing the formation of the Emirate of Qurnuba?
Moorish piracy had reached the area before, but the invasion seemed to be on a whim, so it's probably not inevitable.
I believe before the invasion, the site of initial landing was called Cornovia. The larger island in its entirety was called Britannia, and the smaller one was called Hibernia.