They where built to protect villages or as a fall back position
castel del Monte was built for fredericks the 2nd in 1242. it was also numerolgy that made it be built
With great difficulty.
The population of Castel San Giovanni - Castel Ritaldi - is 259.
France Castel is 5' 5".
Castel Ritaldi's population is 3,354.
The population of Castel Viscardo is 3,049.
Castel Vittorio's population is 355.
The population of Castel Colonna is 1,069.
The population of Castel Condino is 235.
The population of Castel Morrone is 4,007.
The population of Castel Maggiore is 15,922.
Castel d'Azzano's population is 10,825.