Algerians are descendants from the Berbers, who are the indigenous ethnic group of Algeria and are believed to be the ancestral stock on which elements from the Phoenicians, Romans, Byzantines, Arabs, Turks as well as other ethnic groups have contributed to the ethnic makeup of Algeria. Descendants of Andalusian refugees are also present in the population of Algiers and other cities. Moreover, Spanish was spoken by these Aragonese and Castillian Morisco descendants deep into the 18th century, and even Catalan was spoken at the same time by Catalan Morisco descendants in the small town of Grish El-Oued.