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- It is a little arch erected by bankers (argentari) and cattle-dealers of
the Foro Boario (the cattle market located in this zone) in honour of
Settimius Severus, his wife Julia Domna and their sons Geta and Caracalla in
204. It is characterized by excessively elaborated decorations showing the
degrade of the artisan art. The names of Geta, Plauziano (head of the
emperor's guard) and Plautilla (daughter of Plauziano and wife of Caracalla),
formerly inscribed in dedication of arch, disappeared, because all three
were murdered by Caracalla and their names were deleted by his order.
- The arch is full of holes made by searchers of the treasure, that
according to a legend was hidden behind the bas-relieves.