Under the reign of Octavian, the later emperor Augustus, the colony was strengthened according to Caesar's construction plans, and its name was finalised as Colonia Iulia Augusta Firma Astigitana.[5] Astigi was an important town of Hispania Baetica, as well as the seat of the Astigitanus, one of the four conventi where the chief men met together at fixed times of the year under the eye of the proconsul to oversee the administration of justice.[10] The city walls were demolished in the early 10th century as punishment for the local support to the rebellion against Umayyad rule led by Umar ibn Hafsun.[14] The Jewish population of Écija apparently suffered the antisemitic revolt initiated after the assault on the jewry of Seville in June 1391, that spread across Andalusia and much of the Iberian Peninsula.[20] During the transition from the late middle ages to the early modern period, Écija remained integrated, within the Crown of Castile, in the Kingdom of Seville.[22] A significant community of "new christians" of Portuguese origin settled in Écija in the Early Modern period, acquiring a notable influence in the city.[26] Écija featured a relatively multicultural society, allowing for Peninsular and European denizens, and even from the Americas, to share a common space of interchange.