During the Roman and Visigothic periods.

The Alcazar site has been inhabited since the eighth century BC. The remains of a 1st century Roman building, the function of which is unknown, have been discovered. This first-century structure extended from the courtyard of Banderas to the interior of the current enclosure. On its ruins was built an early Christian church known as the basilica of San Vicente, one of the city's three main temples during the Visigothic period. Some remains of this primitive temple have been discovered in Banderas' courtyard, and some capitals and shafts from this ancient temple were used in the construction of Pedro I's palace. Bishop Honoratus' tombstone, which was most likely located in this church, is now housed in Seville Cathedral.

In 914, Cordoban emir Abderraman III commissioned the construction of a citadel with a quadrangular wall attached to the city's old Roman wall. The only known access gate to this citadel was at number 16 in the Court of Flags courtyard, where the northern jamb of an arch has survived. Simple outbuildings such as storerooms, stables, and barracks were attached to the walls on the inside.

Following the fall of the caliphate, the Abbot dynasty took control of the city and engaged in extensive construction. The citadel was expanded to the south in the mid-11th century, doubling its size. A new entrance was built, complete with a control castle, of which a double horseshoe gate still stands in what is now Calle Joaqun Romero Murube. A series of small buildings were built inside, and there was most likely a main palatial building where the Gothic palace now stands. The Taifa king of Seville, Al-Mutamid, extended the fortress to the west in the second half of the 11th century and built some palatial buildings. This was the first Alcázar of Blessing (Al-Mubarak).

A carbon-14 test was performed on the Al-wall Mubarak's in 2009. This test determined that the year 1090 was the closest to the date of construction, with a margin of error of 40 years. In other words, the Alcázar's preserved wall would date from Seville's Taifa period or the beginning of the Almoravid period.

The Almohads completely reformed this area in the 12th century. They built a wall system that connected the Alcazar to other fortifications all the way to the Guadalquivir riverbed. The Alcazar extended all the way to the tower of Abd el Aziz, which stands on the present-day Avenida de la Constitución. A dozen new and larger buildings were built on the inside. 7 The walls of the Alcazar were also incorporated into new and reformed fortifications for the city's defence. The Torre del Oro, built in the early 13th century, was the culmination of these defensive works (Gold Tower).

*The Alcazar after the Conquest of Castile

Ferdinand III did not work on the Alcazar after his conquest of the city in 1248. For decades, the Christian court was established in the old Almohad spaces. Alfonso X used the space of the main building to build the Gothic palace between 1252 and 1260, while the other buildings of the Almohad Alcazar were renovated for later use. In the 14th century, following the devastating earthquake of 1356, King Peter I ordered the demolition of three Almohad palace buildings in order to construct the Mudejar palace, which was attached to the Alphonse Gothic palace. Construction began in 135611 and was completed in 1364, according to inscriptions on the Alcázar itself.

The first Castilian civil war began in 1366, pitting Peter I against his half-brother Henry II, and ended with Peter's death in 1369, so he would not have been able to live in it for long.

The Alcázar has been the site of numerous events related to the Spanish Crown throughout history. Between 1363 and 1365, as the seat of the Castilian court, it was visited by Granada's diplomats, philosopher Ibn Khaldun, and chronicler and poet Ibn al-Khatib, to sign a peace treaty with King Don Pedro. The English diplomats Neil Loring, Richard Punchardoun, and Thomas Balastre were sent to this Alcázar by the Prince of Wales in 1367 to meet Don Pedro and collect payments.

After a ten-year absence, the Catholic Monarchs arrived in Seville on July 28, 1477, and used the palace as their headquarters. Observing the building's poor condition, Queen Isabella I of Castile ordered interventions and measures for its material and functional recovery.

Her second son, Prince John, was born in the palace a year later, on June 30, 1478. It is known that a midwife from Seville known as "la Herradera" attended the royal birth, and that Garci Téllez, Alonso Melgarejo, Fernando de Abrejo, and Juan de Pineda were present as witnesses appointed by King Ferdinand to dispel any doubt that the child was the Queen's. The Alcázar hosted Charles I's wedding to his cousin Isabella of Portugal in 1526.

The Court was established in the Alcázar of Seville between 1729 and 1733. There lived Philip V, Isabella of Farnese, and the future Charles III.

The Sevillian junta and, later, the Supreme Central Junta met here during the War of Independence.

Queen consort Maria Isabel de Braganza and her sister Maria Francisca stayed here between September 13 and 16, 1816.

Due to the military intervention of the Hundred Thousand Sons of Saint Louis in 1823, the government and the Cortes decided to relocate the royal family, led by Ferdinand VII, to Seville. They arrived on April 10, 1823. 25 The infante Enrique de Borbón y Borbón-Dos Sicilias, son of the infante Francisco de Paula de Borbón and Luisa Carlota de Borbón-Dos Sicilias, was born in the Alcázar on April 17, 1823, and the king bestowed the title of Duke of Seville on him two days later. Faced with the approaching French troops, the Cortes met in the church of the former Convent of San Hermenegildo, and the government decided to relocate the royal family to Cadiz. They left Seville on June 12th. After restoring absolute monarchy, Ferdinand VII and his family travelled from Cadiz to Madrid, stopping in Seville between October 8 and 23, 1823.

Joaqun Domnguez Bécquer spent years in a house in the Banderas courtyard in the nineteenth century. He ran a painting studio in the Apeadero. He worked as a restorer in the Alcázar and as a Royal Household painter.

In 1849, the Duke of Montpensier and Infanta Maria Luisa moved to the Palace of San Telmo from the Palace of Versailles.

On October 16, 1876, during the reign of Alfonso XII, his mother, Isabella II, and the Infantas Paz, Eulalia, and Pilar moved here. The courtship of Alfonso XII and Mara de las Mercedes, the Duke's daughter, strained relations between Isabella II and the Duke of Montpensier, who lived in the nearby Palace of San Telmo. As a result, on September 8, 1877, Isabella II and her daughters left the Alcázar of Seville for the Monastery of San Lorenzo de El Escorial.

Alfonso XII stayed in Seville with Isabella II from March 26 to March 31, 187734, and then without his mother from December 22 to January 8, 1878. He met Maria de las Mercedes during both of his stays. Alfonso XII returned to Seville between April 29 and May 1, 1879. It was a visit of mourning for his cousin, Christina of Orleans, who had died.

Alfonso XIII and his wife, Victoria Eugenia de Battenberg, visited Seville frequently. This king was a sports fan and had a tennis court built in the Alcubilla courtyard, which was one of the first in Spain but has since been demolished.

The Government of the Second Spanish Republic, on the proposal of its Minister of Finance, Indalecio Prieto, ceded the Alcázar and its gardens to the municipality of Seville by decree dated 22 April 1931.

During the Spanish Transition, a meeting of the Council of Ministers was held here on April 2, 1976, presided over by Juan Carlos I. On March 19, 2010, the Council of Ministers reconvened in the Alcázar, this time without the monarch's presence.

On the occasion of the wedding of the Infanta Elena de Borbón, daughter of King Juan Carlos I, to Jaime de Marichalar, a lunch and reception were held here on March 18, 1995.