The name isn’t really an issue for a number of reasons. It could have been changed by the family itself to take advantage of political and social conditions, and storytellers also would have reason to update the name to appeal to their audiences.
In fact, considering the centuries-long game of telephone that would be at play, it’s more surprising that the modern name is as close as it is to the name that appears in the prophecy itself. This makes it fairly likely that the whole story had been lost and was rediscovered relatively recently and then gallicized.
The name isn’t really an issue for a number of reasons. It could have been changed by the family itself to take advantage of political and social conditions, and storytellers also would have reason to update the name to appeal to their audiences.
In fact, considering the centuries-long game of telephone that would be at play, it’s more surprising that the modern name is as close as it is to the name that appears in the prophecy itself. This makes it fairly likely that the whole story had been lost and was rediscovered relatively recently and then gallicized.