Beneath Milan’s vibrant pulse stands the Basilica of San Lorenzo Maggiore. It is a testament to resilience and architectural daring. This Roman Catholic church is one of Milan’s oldest. Its history stretches back to Roman times. The Basilica of San Lorenzo is near the medieval Porta Ticinese. It stands close to the Basilicas Park with the Basilica of Sant’Eustorgio and the Colonne di San Lorenzo.
The Basilica of San Lorenzo’s origins are shrouded in mystery. Built between the late fourth and early fifth centuries. Its exact date and commissioner remain unknown. Some believe it coincided with the Basilica Portiana. Valentinian I or II built that basilica for the Arian Bishop Auxentius. Others suggest a later founding between 390 and 402. Emperor Theodosius I or Stilicho may have commissioned it. Archaeological investigations support this view. Some think it was an imperial basilica. It would have affirmed Milan’s role as the imperial capital of the West. Others see it as a mausoleum for the Theodosian dynasty.
What is certain is that San Lorenzo was the largest centrally planned building in the West at the time. The dedication to St. Laurence is only certified from 590. Milan was then controlled by the Lombards.
During Medieval Milan’s decline, San Lorenzo remained important. As the city’s highest point it symbolized the Mount of Olives. On Palm Sunday the bishop blessed palms there. He then led a procession to the now-demolished Basilica of Santa Tecla. The eleventh and twelfth centuries brought disasters. Fires and earthquakes damaged the basilica. The terrible “fire of the Stork” in 1071 destroyed the internal decorations. Restorations were needed between the twelfth and thirteenth centuries. The open space behind the basilica was used for executions until 1840. By 1167, the basilica was within the city walls at the new Porta Ticinese.
San Lorenzo symbolized the Roman Empire’s legacy throughout the Middle Ages. During the Renaissance, it became an example of classical architecture. Humanists and artists like Bramante and Leonardo studied it. On June 5, 1573, the basilica’s dome collapsed. A new dome was built in a more modern style by 1619. During reconstruction, a miracle occurred. A sick woman was cured before the icon of the Madonna del Latte. Donations increased allowing faster reconstruction. In 1626, the Madonna del Latte was moved to the high altar.
In the 1830s, the Austrian Government redeveloped the area. Houses built against the basilica were demolished. The Vetra channel was covered and executions were abolished. Bombings in 1944-1945 destroyed houses. They were not rebuilt allowing the creation of the park of the basilicas. In 1934 a courtyard was formed opposite the basilica.
The basilica had a central plan with a four-sided portico. It was surrounded by two connected structures. Access was through a colonnade. The main building was a square hall with four apses. Towers rose at the four corners. The whole was topped by a dome. The interior was lit by large windows. It was decorated with marble and mosaics. The smaller side building was a chapel dedicated to St Hippolytus. The larger building was the imperial mausoleum. Tradition says Galla Placidia founded it.
Between 489 and 511, Bishop Lorenzo built a chapel dedicated to St Sixtus. It was used for burying metropolitans. Perhaps then, the mausoleum became a chapel dedicated to St Genesius. By the sixth century, two portals were opened on the east wall.
In the tenth century, reconstruction likely involved Byzantine workers. After the disasters of the eleventh century, restorations focused on stability. In the fifteenth century, the Chapel of the Citizens was created. After the 1573 collapse, Martino Bassi designed a new dome. It was completed in 1619. Archbishop Borromeo rededicated the chapel of St Genesius to St Aquilino. In 1713, the Chapel of Redemption was added.
In 1894, Cesare Nava built a vestibule with three ionic arches. In 1934, houses in the courtyard were demolished. A bronze statue of Constantine the Great was placed there.
The square features the Colonne di San Lorenzo. These columns date from the 3rd century AD. They belonged to baths built by Emperor Maximian. They were moved here when the basilica was finished. The Basilica of San Lorenzo stands as a powerful reminder of Milan’s rich and complex past. Its stones whisper tales of emperors, saints, and the enduring spirit of a city.