Iglesia de la Santísima Trinidad (Church of the Holy Trinity), Segovia

The Church of the Holy Trinity is a remarkable example of Romanesque architecture. The church features a single nave covered by a half-barrel vault, with a curved apse preceded by a straight section. On the south side, there is an atrium, a characteristic element of Segovian Romanesque architecture. The north side of the church includes a Gothic chapel and two Baroque sacristies.

Externally, the apse is partially concealed in a narrow alley. It is divided into three panels by two half-columns and adorned with two horizontally aligned windows featuring angled columns and decorated capitals. The exterior is finished with a projecting cornice adorned with cane-shaped elements representing fantastic or real figures.

The church's interior is particularly striking, with two levels of stacked arches supported by historiated capitals. These capitals showcase intricate plant motifs, fantastical creatures, and other sculptural and iconographic details. Some remnants of the original polychrome decoration can still be seen. The southern side of the church features a porticoed gallery, a characteristic feature of Segovian Romanesque, with semicircular arches supported by double columns adorned with simple yet elegant plant decorations.

The church boasts two portals. The western portal, though simple in construction, features rounded arches resting on beautiful capitals adorned with insects and flora. Above the doorway, there is a window that illuminates the main nave, while the side portal, accessed from the atrium, showcases exquisite capital decorations.

The current church, constructed in the 12th century, replaced an earlier 11th-century structure whose remains were discovered after the demolition of a Baroque chapel in 1984. The oldest part of the current church is the apse and the west portal, while the atrium is a later addition. In 1513, the Campo chapel was built, featuring an Elizabethan Gothic-style doorway with a lowered arch topped by an ogee decorated with cardinas. During the 17th century, the church's interior was redecorated with baroque plasterwork in line with the prevailing tastes of the time.