It was applied to Romanesque, Gothic and Renaissance architectural styles as constructive, ornamental and decorative motifs derived from those that had been brought to or developed in Al-Andalus.
The Mudéjars were the Muslims who remained in the former areas of Al-Andalus after the Christian Reconquista in the Middle Ages and were allowed to practice their religion to a limited degree.
It was a medieval Castilian borrowing of the Arabic word Mudajjan مدجن, meaning "tamed", referring to Muslims who submitted to the rule of Christian kings.
It is thought to have begun with Muslim craftsmen who applied traditional constructive, ornamental, and decorative elements derived from the Islamic arts to Christian styles of architecture.
[7] Brick held great importance as a material of construction, its maneuverability and resistance, aesthetic characteristics and inexpensive nature, made it suitable for architecture that needed to be built in a timely fashion.
Mudéjar often makes use of girih geometric strapwork decoration, as used in Middle East architecture, where Maghreb buildings tended to use vegetal arabesques.
[citation needed] With the re-establishment of Christian rule throughout the formerly Muslim controlled areas of Iberia came the different Mudéjar construction methods for creating a building using inexpensive materials like brick, wood, and stucco.
[13] Mudéjar spread to other parts of the Kingdom of León: notable examples can be found in Toledo, Ávila, Segovia, Toro, Cuéllar, Arévalo and Madrigal de las Altas Torres.
Mudéjar art emerged in the north-eastern Christian Kingdom of Aragon in the 12th century and includes more than a hundred surviving examples, located predominantly in the valleys of the Ebro, Jalón and Jiloca.
[15] Christian builders and craftsmen carried Mudéjar style elements to the overseas territories of the Spanish empire, especially in the 16th century, complementing Renaissance architecture before the emergence of Baroque.
Mudéjar geometric design can be seen through its octagonal patterned wood ceiling and in the underside of the supporting arches, which are carved with a vegetable motif based on the arabesque.
Objects, as well as ceilings and walls, were often decorated with rich and complicated designs, as Mudéjar artists were not only interested in relaying wonder, a key feature of Islamic art and architectural traditions, but in conveying the sumptuousness of materials and ornament.
On top of the white, cobalt blue, green copper, and purple manganese oxides were used to make vibrant, shimmering surfaces with the appearance of gold and other precious metals.
[24] Some Spanish architectural firms have turned their attention to building projects in the modern Arabic-speaking world, specifically Morocco, Algeria, and Eastern Arabia, where Mudéjar art influences are commissioned as a preferred style of housing.
Muslim architects are also currently making great strides in terms of modern architecture, reflecting the technical and engineering feats, as well as aesthetic expertise, reminiscent of the Mudéjar styles.