Francis of Assisi died in 1226 after inspiring a movement centered on poverty, preaching, and care for marginalized people. Pope Gregory IX canonized him in July 1228 and laid the foundation stone of a great basilica at Assisi the next day. Brother Elias, an influential early Franciscan, directed the project on land called the Hill of Hell, soon renamed the Hill of Paradise. Construction created a lower church suited to pilgrimage and burial and an upper church used for preaching and major ceremonies.

Francis’s body was transferred to the basilica in 1230 and concealed to prevent theft, while the adjoining Sacred Convent became a center of Franciscan government and learning. Architecture and painting made the complex a turning point in Italian art. Cimabue, Giotto or artists associated with his workshop, Simone Martini, Pietro Lorenzetti, and others covered walls with biblical scenes, saints, and narratives of Francis. The images presented the new order’s ideals while papal patronage linked the movement to institutional power.

That relationship produced tension. Francis had embraced radical poverty, yet his burial church accumulated costly materials, privileges, property, and artistic commissions. Franciscans debated how strictly to follow his example, and divisions between Spiritual and Conventual branches affected the order. Pilgrims, popes, rulers, and ordinary worshippers nevertheless made Assisi a major religious destination. Chapels and monuments added by patrons turned the basilica into an archive of medieval devotion and competition.

Francis’s tomb was rediscovered beneath the lower church in 1818 after centuries of concealment, and a crypt was created for public veneration. Italian unification brought suppression of religious houses and state intervention, though friars later resumed custodianship. In 1986 Pope John Paul II convened leaders of many faiths at Assisi for a World Day of Prayer for Peace, using Francis’s reputation for reconciliation to create a modern international event.

Earthquakes on September 26, 1997, caused vaults in the upper church to collapse, killing four people and shattering important frescoes into thousands of fragments. Engineers stabilized the structure, while conservators undertook an immense project of sorting and replacing painted pieces. The basilica reopened in 1999, though restoration continued. UNESCO inscribed Assisi and its Franciscan sites in 2000. The complex therefore records canonization, institutional growth, artistic revolution, religious controversy, modern interfaith symbolism, disaster, and collaborative conservation. Its beauty should not obscure the central paradox that has shaped it from the beginning: a monumental treasury was built to honor a saint who renounced wealth.

Pilgrimage continues to make the basilica an active religious place rather than a closed historical monument. Large crowds, liturgy, candle smoke, seismic risk, and the fragility of medieval painting require compromises among worship, access, scholarship, and conservation. Franciscan custodians and civil authorities share responsibilities complicated by the complex’s international importance. Interpretive debates also ask how a saint associated with peace and humility should be represented amid crusading culture, institutional wealth, and modern tourism. The basilica’s long history is therefore not a smooth celebration. It is a record of how Francis’s memory was repeatedly organized—by papal policy, art, architecture, ritual, disaster recovery, and global encounters—to address changing religious and political needs.