In particular, during the demolition of a part of the city wall named "Muraglia Marvulli", four bullets were found in 1863 which the then mayor of Altamura—Candido Turco—suggested that they were shot by the Sanfedisti during the Altamuran Revolution (1799).

[4] The city walls had the typical characteristics of a defensive military structure and, in particular, some of its features are inferred the maps known as Carte Rocca (it should be added that Carte Rocca do not provide a complete representation, but they tend to represent some of its features, since some areas of the city look empty).

In the map Carte Rocca P/33 a moat surrounding the walls is clearly visible in some parts; a few drawbridges for the gates of Altamura Castle and Porta Foggiali are also drawn (the latter looks more similar to a footbridge).

[6] From the Carte Rocca P/33 the presence of a further gate can be inferred, which passed through Altamura Castle and which was more similar to a footbridge.

There are more details about the demolition of Porta Foggiali compared to the other gates, since there is a source stating that it can be traced back to sometime before 24 November 1823.