15thc perception on swallowtail merlons?

[Pierre Dumont Himself]

@Koen, sorry if this is the wrong thread, but I notice that I don't see any swallowtail merlons on the map in Naples.

On swallowtail merlons in Napoli and the south:

4. I have not seen swallowtail merlons on any map or veduta made in the entire Kingdom of Sicily on this side of the Lighthouse between the 1490s and the 18th century. They do not appear on the 1472-3 veduta of Napoli either.
5. The merlons on the Torri di Varano are indeed original as stated by the Fondo Ambiente (The Italian equivalent of the UK's National Trust):

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On swallowtail merlons and the Aragonese conquest of Naples (1442):
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On swallowtail merlons in Tuscania, Central Italy
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My impression so far is that swallowtail merlons were repeatedly brought to stone-using Central Italy by brick-using Lombard craftsmen and became only partially localized. However, they must have been at least somewhat familiar to the local population from early on, including (some) craftsmen and painters. The Adriatic coast is a different beast, because it's a large plain, and thus a "brick" area. Indeed, there might be quite a few castles with swallowtail merlons and paintings depicting them are relatively common. The Ligurian coast used stone, but its swallowtail merlons might be influenced by the city of Genova, which almost certainly had them.  In southern Italy, all known merlons in manuscripts were made by northeners. Napoli was the fifth largest city in Italy and the largest south of Firenze; it was bigger than Rome even in Cavallini's time, before the plague and the Avignon Papacy; by the 15th century it had become a commercial emporium and had a court with northern connections. It remains to be seen if we can find any swallowtail merlons drawn or painted by local artists, but they would be rare in any case.