Saint of the Day – 9 October – St John Leonardi (1541-1609)

Saint of the Day – 9 October – St John Leonardi (1541-1609) – Priest, Founder, Confessor, Reformer, Apostle of the Holy Eucharist and Eucharistic Adoration, Marian devotee.  Born Giovanni Leonardi in 1541 at Diecimo, Lucca, Italy – 8 October 1609 at Rome, Italy of natural causes).   He was buried in Santa Maria in Portico and was Beatified in 1861 and Canonised on 17 April 1938 by Pope Pius XI.  St John founded the Clerks Regular of the Mother of God of Lucca, wherein he assumed the name of “Giovanni of the Mother of God” as his religious name.   Patronages – Pharmacists and the Clerks Regular of the Mother of God of Lucca.   Attributes – Cassock.

John Leonardi was born in 1541 in Diecimo, in the province of Lucca.   The last of seven siblings, his adolescence was sprinkled with rhythms of faith lived in a healthy and industrious family group, as well as the assiduous frequenting of a shop of herbs and medicines in his native town.   At age 17 his father enrolled him in a regular course in pharmacy in Lucca, with the aim of making him a future pharmacist, that is, an apothecary, as they were called then.   For close to a decade young John Leonardi was vigilant and diligent in following this, but when, according to the norms established by the former Republic of Lucca, he acquired the official recognition that would have allowed him to open his own shop, he began to think if perhaps the moment had not arrived to fulfill a plan that he had always had in his heart.

After mature reflection he decided to direct himself toward the priesthood.   And thus, having left the apothecary’s pharmacy, and acquired an appropriate theological formation, he was ordained a priest and celebrated his first Mass on the feast of Epiphany of 1572.   However, he did not abandon his passion for pharmaceutics because he felt that professional mediation as a pharmacist would allow him to realize fully his vocation of transmitting to men, through a holy life, “the medicine of God,” which is Jesus Christ crucified and risen, “measure of all things.”


Animated by the conviction that, more than any other thing, all human beings need such medicine, St John Leonardi tried to make the personal encounter with Jesus Christ the fundamental reason of his existence.   It is necessary to “start anew from Christ,” he liked to repeat very often.

The primacy of Christ over everything became for him the concrete criterion of judgment and action and the generating principle of his priestly activity, which he exercised while a vast and widespread movement of spiritual renewal was under way in the Church, thanks to the flowering of new religious institutes and the luminous witness of saints such as Charles Borromeo, Philip Neri, Ignatius of Loyola, Joseph Calasanzius, Camillus of Lellis and Aloysius Gonzaga.

He dedicated himself with enthusiasm to the apostolate among youth through the Company of Christian Doctrine, gathering around himself a group of young men with whom, on Sept. 1, 1574, he founded the Congregation of Reformed Priests of the Blessed Virgin, subsequently called the Order of Clerks Regular of the Mother of God.   He recommended to his disciples to have “before the mind’s eye only the honour, service and glory of Christ Jesus Crucified,” and, like a good pharmacist, accustomed to giving out potions according to careful measurements, he would add:  “Raise your hearts to God a bit more and measure things with him.”

Moved by apostolic zeal, in May 1605 he sent newly elected Pope Paul V a report in which he suggested the criteria for a genuine renewal of the Church.   Observing how it is “necessary that those who aspire to the reform of men’s practices must seek especially and firstly, the glory of God,” he added that they should stand out “for their integrity of life and excellence of customs thus, rather than constraining, they gently draw one to reform.”   Moreover, he observed that “whoever wishes to carry out a serious moral and religious reform must make first of all, like a good doctor, a careful diagnosis of the evils that beset the Church so as to be able to prescribe for each of them the most appropriate remedy.”   And he noted that “the renewal of the Church must be confirmed as much in leaders as in followers, high and low.   It must begin from those who command and be extended to the subjects.”

It was because of this that, while soliciting the Pope to promote a “universal reform of the Church,” he was concerned with the Christian formation of the people, especially of the young, educating them “from their early years … in the purity of the Christian faith and in holy practices.”

He chose the Blessed Mother to be the patroness of his order because he had a strong devotion to her.   He always kept his gaze on our Lady and she was his teacher, sister and mother who protected him and led him closer to Jesus Christ.

Dear brothers and sisters, the luminous figure of this saint invites priests, in the first place and all Christians, to tend constantly to the “high measure of the Christian life,” which is sanctity — each, of course, according to his own state.   In fact, only from fidelity to Christ can genuine ecclesial renewal spring.

In those years, in the cultural and social passage between the 16th and 17th century, the premises of the future contemporary culture began to be delineated, characterised by an undue separation of faith and reason.   This has produced among its negative effects the marginalization of God, with the illusion of a possible and total autonomy of man who chooses to live “as if God did not exist.”   This is the crisis of modern thought, which many times I have had the opportunity to point out and which often leads to a form of relativism.

John Leonardi intuited what the real medicine was for these spiritual evils and he synthesized it in the expression: “Christ first of all,” Christ in the centre of the heart, in the centre of history and of the cosmos.   And humanity — he affirmed forcefully — needs Christ intensely, because he is our “measure.”   There is no realm that cannot be touched by his strength;  there is no evil that cannot find remedy in him, there is no problem that cannot be solved in him. “Either Christ or nothing!”  Here is his prescription for every type of spiritual and social reform.

There is another aspect of the spirituality of St John Leonardi that I would like to highlight.   In many circumstances he had to confirm that a living encounter with Christ is realised in his Church:  holy but fragile, rooted in history and in a sometimes dark future, where wheat and weeds grow together (cf. Matthew 13:30), but, nevertheless, always the sacrament of salvation.   Having a clear awareness that the Church is the field of God (cf. Matthew 13:24), he was not scandalised by her human weaknesses.   To oppose the weeds he chose to be good wheat:   He decided, that is, to love Christ in the Church and to contribute to render her an ever more transparent sign of Him.

He saw the Church with great realism, her human frailty, but also her being “God’s field,” the instrument of God for the salvation of humanity.   And not only this.   For love of Christ he worked with alacrity to purify the Church, to render her more beautiful and holy.   He understood that every reform is made within the Church and never against the Church.

In this, St John Leonardi was truly extraordinary and his example is always timely.   Every reform certainly involves structures but in the first place it must be engraved in the hearts of believers.   Only the saints, men and women who allow themselves to be guided by the divine Spirit, ready to carry out radical and courageous choices in the light of the Gospel, renew the Church and contribute, in a decisive way, to building a better world.

Together with Monsignor Juan Bautista Vives and Jesuit Martin de Funes, he planned and contributed to the establishment of a specific Congregation of the Holy See for the missions, that of Propoganda Fide, and to the future birth of the Pontifical Urbanian Athenaeum “De Propoganda Fide,” which in the course of centuries has forged thousands of priests, many of them martyrs, to evangelise peoples.   We are speaking, therefore, of a luminous priestly figure, which I am pleased to point out as an example to all presbyters in this Year for Priests.   He died in 1609 from influenza contracted while he was giving himself to the care of all those who had been stricken by the epidemic in the Roman quarter of Campitelli.     He was venerated for his miracles and religious fervour and was canonised in 1938 by Pope Pius XI.  He was chosen as the patron of pharmacistss.

General Audience
On St John Leonardi
“To Oppose the Weeds He Chose to be Good Wheat”
H.H. Benedict XVI
7 October 2009

St John Leonardi

st john leonardi relics close-up


Passionate Catholic. Being a Catholic is a way of life - a love affair "Religion must be like the air we breathe..."- St John Bosco Prayer is what the world needs combined with the example of our lives which testify to the Light of Christ. This site, which is now using the Traditional Calendar, will mainly concentrate on Daily Prayers, Novenas and the Memorials and Feast Days of our friends in Heaven, the Saints who went before us and the great blessings the Church provides in our Catholic Monthly Devotions. This Site is placed under the Patronage of my many favourite Saints and especially, St Paul. "For the Saints are sent to us by God as so many sermons. We do not use them, it is they who move us and lead us, to where we had not expected to go.” Charles Cardinal Journet (1891-1975) This site adheres to the Catholic Church and all her teachings. PLEASE ADVISE ME OF ANY GLARING TYPOS etc - In June 2021 I lost 95% sight in my left eye and sometimes miss errors. Thank you and I pray all those who visit here will be abundantly blessed. Pax et bonum! 🙏

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