Musa, accompanied by his son Abd al-Aziz ibn Mussa, crossed the Strait with an army of 18,000 men and proceeded to the conquest of Visigothic territory. Occupied Medina Sidonia, Carmona and Seville, and then attacked Mérida, laying siege to the city, which survived one year (June 30, 713). The Muslim ruler Abd al-Aziz ibn Mussa, took Sevilla after a long siege. Until his assassination at the hands of their cousins in the 716, Sevilla served as capital of Al-Andalus (the name given the Iberian Peninsula as a province of the Islamic empire). From that time the seat of government moved to Cordoba with the rank of Emirate (independent since Rahman I -773 - and become Caliphate with Rahman III -929 -). Sevilla would be head of a cora.
During this period of Muslim rule grew enormously rich culture of Seville, whose name was Arabized as Isbilia. It favored the expansion of Islam through concessions to the Christians who convert to Islam (muladíes) and not those who stayed enjoyed Christians (Mozarabic). The city called Mozarabic Ixbilia, led Sivilia name and Sevilla have reached today.
For 830 years they built the Ad-Abbas Mosque, which currently holds the church of El Salvador.
On 1 October 844, while most of the Iberian peninsula controlled by the Emirate of Cordoba, a group of about 80 boats Vikings, after trying to loot Asturias, Galicia and Lisbon (city got their back), amounted by the Guadalquivir go to Sevilla, attacked the city for seven days, causing a large number of casualties and making numerous hostages with the intention of ransom, "another group remained in Cadiz for plunder. As the money arrived, they were waiting in the Minor or Qabtîl Island (an island in the river). Meanwhile, the emir of Cordoba, Abd ar-Rahman II, prepared a quota to meet them. On November 11 a pitched battle was fought on the grounds of Tablada. The results were catastrophic for the invaders, who suffered a thousand casualties, four were captured and executed, thirty ships were destroyed, with the freed hostages.
Over time, the small number of survivors were converted to Islam and settled as farmers in the area of Coria del Rio, Carmona and Morón, dedicated to livestock and dairy products (cheeses today are appreciated, only in the area) . The Vikings made several incursions in the years 859, 966 and 971, but more diplomatic conquering intentions, although an attempt at conquest in the year 971 was frustrated, being totally annihilated the Viking fleet.
During this period of Muslim rule grew enormously rich culture of Seville, whose name was Arabized as Ishbiliya. The city depended on the Emirate, and later of the Caliphate of Cordoba. After the fall of the caliphate became independent and was the capital of one of the most powerful Taifa kingdoms, from 1023 to 1091, ruled by the family of the abbeys. Meanwhile, Christians often showed threatening between the Taifa kingdoms, and in 1063, in a Christian incursions under the command of Ferdinand I of Castile discovered the weak military force that had these realms. Thus, with little resistance, a few years the king of Seville Al-Mutamid had to buy peace and pay an annual tribute, turning to Seville for the first time in Castilla tax.
From the late eleventh and twelfth century until the middle of the Taifa kingdoms were united under the Almoravids (of Saharan origin). After the collapse of the empire Almoravids, in 1151 the city was taken over by the Almohad Empire (of North African origin). These times were booming economically and artistically to Seville was built the Giralda, the Alcazar and the bridge of boats to connect with Sevilla. Triana