naves contain seven chapels. The other two were created later on the eastern and western sides of the cathedral. These last two are not open to the public. The fourteen chapels in the east and west naves are listed below. The first seven are in the east nave, listed from north to south, and the last seven are in the west nave. Chapel of Our Lady of the Agonies of Granada The Chapel of Our Lady of the Agonies of Granada () was built in the first half of the 17th century and originally served as the sacristy. It is a medieval-style chapel with a ribbed vault and two relatively simple altarpieces. The narrow altarpiece contains an oval painting of Saint Raphael, Archangel and the young Tobias, a 16th century painting attributed to Flemish painter Maerten de Vos. At the top of this altarpiece is a painting of Our Lady of Mount Carmel, and above this is a painting of the Last Supper. At the back of the chapel is a churrigueresque painting of Our Lady of the Agonies of Granada. Chapel of Saint Isidore The Chapel of Saint Isidore () was originally built as an annex between 1624 and 1627, and was once used as the baptistery. Its vault contains plaster casts representing Faith, Hope, Charity, and Justice, considered to be basic values in the Catholic religion. After the Tabernacle was built, it was converted into a chapel and its door was reworked in a churrigueresque style. Chapel of the Immaculate Conception The Chapel of the Immaculate Conception () was built between 1642 and 1648. It has a churrigueresque altarpiece which, due to the lack of columns, most likely dates from the 18th century. The altar is framed with molding—instead of columns—and a painting of the Immaculate Conception presides over it. The altar is surrounded by paintings by José de Ibarra relating to the Passion of Christ and various saints. The chapel also contains a canvas of Saint Christopher painted by Simon Pereyns in 1588, and the Flagellation by Baltasar de Echave Orio, painted in 1618. The altarpiece on the right side is also dedicated to the Immaculate Conception and was donated by the College of Saints Peter and Paul. This chapel holds the remains of Franciscan friar Antonio Margil de Jesús who was evangelized in what is now the north of Mexico. Chapel of Our Lady of Guadalupe