In the Middle Ages, the village of Campli was enclosed and protected by high fortified walls and the only access to the city was possible through the four entrance gates. The Porta Angioina, also known as the Eastern Gate (XIII century), is the only one left to remember the medieval layout of the village and is, in Abruzzo, one of the few doors dating back to the time of the Anjou still intact.
As demonstrated by the presence of battlements, machicolations and loopholes behind which sentinels, lookouts and archers were affixed who in the event of a siege of the city gave the alarm through the sound of the bell placed inside the imposing bell tower of the church of San Giovanni Battista, built to strengthen the defense of Castelnuovo of Campli district. The door is characterized by an imposing pointed arch above which there are three coats of arms of the French family of Anjou.