You could google the answer you were given and hope that the response says what you were expecting.
In this case, the best option appears to be Camorra & Tasca, as more sources offer them as names, with a suggestion that the others are from teenage fiction.
There is also a suggestion though that says there is no record of their names anyway!
I suppose also that one pair of names could be the ancient Briton name and the other the Roman. The best example of this is Cunobelinus, king of Britain whom Shakespeare renames Cymbeline
Hope this helps