The cathedral of the Diocese of Asidonia-Jerez is located in the city of Jerez de la Frontera (Andalusia, Spain). It is a 17th century building that combines Gothic, Baroque and Neoclassical styles.

The present church stands on part of the remains of the primitive Great Mosque of Jerez and the old Church of the Saviour (also known as "Casa del Abad"), dating from the 12th century1. The latter collapsed due to its ruinous state, and little documentation has survived.

The church has a Gothic structure, with five naves of unequal height supported on the outside by buttresses and flying buttresses, and a transverse nave, where a graceful octagonal dome rises 40 metres above the floor of the church at the point where it meets the main nave. Each of the edges of the octagon is decorated with stone statues representing the holy doctors of the Latin Church (St Augustine, St Ambrose, St Gregory the Great, St Jerome, St Athanasius, St John Chrysostom, St Basil the Great and St Gregory Nazianzen). The central nave and transept are 20 metres high, the side aisles are 13 metres high and the far aisles are 8 metres high.

The arches are semicircular, not pointed, and the vaults are groin vaults, those of the central nave and transept being made of carved stone and highly ornamented, while those of the side naves are made of unadorned brick thread. There is no chapel other than the chapel of the Sagrario (tabernacle), in neoclassical style. The main façade has a triple door and is decorated with Baroque imagery and motifs, as are the two side doors, called the Visitation and the Incarnation, and stained glass windows.

Inside there are some paintings and images of real artistic value, among which we can mention the Christ of the Beam, a late Gothic crucifix from the end of the 15th century, and the Child Virgin, by Francisco de Zurbarán, as well as the silver processional Monstrance, a work from 1951 according to a design by Aurelio Gómez Millán. There are also sculptures of the apostles by José de Arce.

For centuries it housed the city's banner dating from the 14th century, which disappeared when it passed into the hands of the town council.

The construction of the cathedral was paid for with a tax on sherry wine approved by the crown.