Originally built in Romanesque style, the cathedral has been restored and extended several times, with Gothic, Renaissance and Baroque elements. Construction began in 1107, but the works were damaged and halted after an earthquake in 1117. Construction resumed in 1129, and the building was probably finished in 1160-1170. The main altar, dedicated to the city's patron saintsArchelaus and Himerius, was consecrated in 1196. The current façade was probably built in the 13th and the early 14th century. In the same period the arms of the transept were also added: the northern in 1288 and the southern in 1348.
Exterior
The main façade, together with the adjoining baptistery, is one of the most important monuments of Romanesque art in Europe. It has a portico with a narthex in the middle, to which a Renaissance loggia with three niches was added in 1491. This is surmounted by a large rose window, flanked by two orders of loggette. The portal is probably from the early 12th century. On its side are the figures of the Four Major Prophets, each bearing a roll with the text of their prophecies. The narthex was made by masters from Campione in the following century: it incorporates an older frieze portraying the Labours of the Months. The four statues on the upper loggia, portraying the Madonna with Child and two bishops, are of the Tuscan school. The columns of the narthex stand on two lions in Verona marble. The left one is holding a dragon, symbol of Evil, in his paws, while the right one is holding a bear, which in turn is biting a bird's neck. On the façade are also two tombs: the more recent one is by Bonino da Campione. The façade of the northern arm of the transept also has a narthex; and its columns also have two lions at the base. It is characterized by a sequence of mullioned windows and rose windows. The façade of the southern arm of the transept dates from 1342, and is in brickwork, as is typical in Lombard Gothic architecture. Its structure is similar to the northern arm, but has slightly more detailed decoration. , in the counter-façade The three apses are all surmounted by loggias with small columns, each having a human face stretching out from the capital. The central apse is much higher than the flanking ones.
Interior
The interior houses important works of art. The oldest are the frescoes of the Stories of Abraham, Isaac, Jacob and Joseph in the southern and northern transept vaults. Also from the Renaissance are the arch of the Stories of the Martyrs Marius and Marta, Audifax and Habakkuk, martyrs in Persia, and the relief of Saint Himerius, both works by Giovanni Antonio Amadeo. Also notable is the urn of Saints Marcellinus and Peter, sculpted mostly by Benedetto Briosco, in the crypt. The wooden choir, with inlay work by Platina, and the contemporary large altar cross in silver and gold, by Ambrogio Pozzi and Agostino Sacchi, in the right aisle of the northern transept, are also notable. The most important figurative complex of the cathedral is the fresco decoration on the side walls of the nave, portraying the Life of Mary and Christ. Different painters collaborated to its execution: the first was Boccaccio Boccaccino, who, in 1506, had already painted a Redemeer with Cremona's Patron Saints in the apse vault. He was succeeded by Giovan Francesco Bembo and Altobello Melone, who both adopted a less classicist style. Next came Girolamo Romanino, author of the scenes from Jesus before Pilatus to Ecce Homo, who painted some of his masterworks here. The last scenes of the Passion were executed by Il Pordenone, who was also responsible of the large Crucifixion, the Deposition and the Schizzi Altarpiece, the latter inspired by Giorgione's style. The complex was completed by Bernardino Gatti with the Resurrection. Other frescoes were added in the mid-16th century by Mannerist painters, including Gatti himself, Bernardino Campi and others. In the 17th centuryIl Genovesino added the Life of St. Roch in the northern transept.