 Since the middle of the twelfth century, population growth led to the construction of the church of San Giovanni Evangelista, from which it derives the present name of San Giovanni Teatino.If the Norman conquest had the power to smash the bonds between the castle of Furca and Aterno, the territory of Sambuceto and its silva were still under the influence of Aterno, as evidenced by a diploma of Henry VI, the Holy Roman Emperor, which in 1195, cited a "silva et territorium Sambuceti" as a dependency of Pescara.Henry VI had become the King of Sicily in 1194 when he invaded the Norman Kingdom of Sicily to end the Hauteville Dynasty.