The pazo of Fonseca, palace of Fonseca, College of Fonseca or College of Santiago Alfeo (which was its original name), is a building belonging to the University of Santiago de Compostela. This complex was listed as an Asset of Cultural Interest in 1931.

In the 16th century it was the initial nucleus where Archbishop Alonso III de Fonseca gathered the studia, using the space of his old family mansion. It was built with designs by Juan de Álava, supervised by Alonso de Covarrubias, and construction continued between 1522 and 1544 by Alonso de Guntín and Jácome García. The façade is later, finished in 1688 by Diego de Romay.

Its façade, in two sections, is in the Plateresque style, with a coat of arms of the Fonseca family and sculptures of the Doctors of the Church, and was made by Diego de Romay in 1688. The ornamentation on the façade includes enigmatic dragons that some authors identify with Mayan-inspired images.

The door leads to a vestibule with a ribbed vault that separates on the left the hall with a Mudejar coffered ceiling (Salón de Grados), formerly used as a refectory, and the Gothic chapel, also by Diego de Romay and currently used as an exhibition hall.

The courtyard is surrounded by a cloister, typically Plateresque, the work of Gil de Hontañón.