Among the outstanding figures of the 15th-century Church, Saint Antoninus of Florence (1389-1459) occupies a special place. A rigorous Dominican, committed archbishop and influential thinker, he devoted his life to ecclesiastical reform, social justice and charity . A man of great austerity, he was one of the architects of a more ethical economy, advocating a management of resources based on the common good.
His role as Archbishop of Florence, a booming city during the Renaissance, brought him into conflict with complex political and social issues. He established himself as a moral guide, fighting corruption, usury and abuse of power, while ensuring the protection of the poor. His charitable works and writings profoundly influenced Christian thinking on economics and governance.
Canonized in 1523, Saint Antoninus remains a role model for economists, administrators, and all those who wish to combine faith and social commitment. This article explores in detail his life, work, and the legacy he left to the Church and the world.

Relic of Saint Antoninus of Florence on relics.es
The youth and religious vocation of Saint Antonin
A youth marked by piety
Antonino Pierozzi was born in 1389 in Florence, into a modest but deeply Christian family. From a very young age he showed a keen interest in prayer and study. Curious and studious, he distinguished himself by his precocious wisdom and his desire to serve God.
At the age of 15 he asked to enter the Dominican Order , known for its rigorous teaching and commitment to preaching. Initially refused because of his fragile health, he did not let this discourage him. Through his perseverance, he was finally accepted into the convent of Fiesole , where he began his religious formation.
Training and first missions
As part of his novitiate, Antoninus immersed himself in the study of theology, canon law, and moral philosophy . He quickly became a scholar, recognized for his intelligence and his ability to interpret Scripture with clarity.
His talent and fervor earned him important missions from his early years in the Order. He actively participated in the Dominican reform, founding several convents where he advocated strict discipline , focused on prayer, work and teaching.
His commitment as Archbishop of Florence
An unexpected nomination
In 1446 , Pope Eugene IV appointed him Archbishop of Florence . Humble and austere, Antoninus tried to refuse this office, believing himself unworthy of such an honor. However, he eventually accepted, convinced that it was a divine call to serve his people.
From the moment he arrived at the head of the diocese, he made an impression by his refusal of privileges. He renounced pomp and wealth, living in simplicity , sleeping on a straw mattress and wearing modest clothing.
A pastor close to the people
Unlike many bishops of his time, St. Antoninus was not content to rule from afar. He regularly traveled to the poorest neighborhoods of Florence , visiting the sick, helping the destitute, and ensuring that everyone could provide for themselves.
His social commitment led him to create charitable institutions , including hospitals and shelters for the most vulnerable. He also established scholarships for disadvantaged young people , allowing them to access knowledge and a better life.
A man of peace and justice
Fifteenth-century Florence was a prosperous city but also troubled by many political and social conflicts. Saint Antoninus played a key role in mediating between rival factions, advocating dialogue and reconciliation.
He fought for fair justice, denouncing the corruption and usury that impoverished the population. To fight against these injustices, he founded the Monts-de-Piété , low-interest loan institutions, intended to help the poorest without falling under the influence of usurers.
An influential thinker and theologian
The "Summa Theologica Moralis": a founding treatise
Saint Antoninus was not only a man of action, he was also a prolific writer. His major work, the Summa Theologica Moralis , is a fundamental treatise on Christian morality.
In this work he addresses issues of theology, economics and politics , establishing ethical principles for the management of public and private affairs. He emphasizes the idea that money and power must serve the common good , not selfish interests.
Its influence on the social doctrine of the Church
Antoninus's thoughts on economics and social responsibility still resonate in the social doctrine of the Church today. He denounced excessive personal enrichment and called on merchants and rulers to ethical and just management of resources .
His work inspired many theologians and moralists, notably influencing the Church's reflections on social justice and the solidarity economy.
The Death and Spiritual Legacy of Saint Antoninus
A last breath in the service of others
In 1459 , after years of hard work in the service of his diocese, Saint Antoninus fell seriously ill. Faithful to his principles to the end, he refused all expensive treatment and continued to help the poor even from his bed of suffering.
On May 2, 1459 , he gave up his soul to God, surrounded by weeping faithful. His disappearance was a national mourning for Florence, which lost one of its greatest benefactors.
Canonization and posterity
His reputation for holiness was such that, immediately after his death , pilgrims began to flock to his tomb, located in the Church of San Marco in Florence .
Pope Adrian VI officially canonized him in 1523 , recognizing the exceptional value of his spiritual and social work. Today, he is venerated as the patron saint of economists, administrators, and moralists .
His legacy lives on through the charitable institutions he founded and the moral principles he taught.
Conclusion
Saint Antoninus of Florence embodies the ideal of the devoted pastor , concerned with the material and spiritual well-being of his people. His commitment to social justice based on the Gospel , his moral rigor and his love for the poor make him an inspiring figure for Christians of yesterday and today.
As a thinker and reformer , he profoundly influenced the social doctrine of the Church, recalling that faith and economics are not incompatible, but must be guided by ethical principles.
His example invites us to reflect on our social responsibility and our commitment to a more just and fraternal world . Whether in business management, the exercise of power or acts of charity, the legacy of Saint Antoninus remains a precious compass for those who seek to reconcile faith and action.