Jon said at the Fiesta that he thought it looked like VdB, though it didn't have fruit on it at the time. Mine haven't fruited yet. Richard didn't rename them to cause confusion. He told me that he saw they were listed as synonyms on the F4F variety list (they are), so he thought the name was interchangeable.
Ischia is the island in Italy (edited) where the figs were imported. The original names of this and the green version were lost so they just named them after the island. I read that here somewhere in an old post.