1. Origins: A Formative Childhood in Brussels
Born on August 31, 1760, in Brussels, Peter Joseph Triest entered the world as the ninth of twelve children in a well-off yet humble family rooted in trade and Catholic piety. His father, Jan Triest, a skilled farrier and master spur-maker, was a respected member of the city’s blacksmith guild and later expanded into real estate. His mother, Cecilia Mello, belonged to noble lineage and brought spiritual strength into the home. The Triests were not part of the aristocratic “Triest” family that produced a bishop of Ghent, but they shared in diligence, faith, and public esteem.
The family lived for a time near St. John’s Hospital, where the mentally ill were housed. Young Peter Joseph, deeply sensitive and observant, would have heard the cries of the sick and watched them arrive, scenes that planted seeds of compassion and future mission.
At age 10, he participated in the 400th anniversary of the Brussels Eucharistic procession—an early sign of his spiritual inclination.
2. Intellectual and Spiritual Formation
Latin School in Geel and Early Encounters with Mental Illness
Peter Joseph studied in Geel, a town historically known for its model of community care for the mentally ill. This experience deeply marked him and later shaped his pastoral work.
University of Louvain and Seminary of Mechlin
In 1780, he entered the University of Louvain where he studied philosophy, theology, and the humanities. By 1782, he began formation at the Seminary of Mechlin, and was ordained a priest in 1786. There, he encountered the works of St. Vincent de Paul and St. Francis de Sales, which would guide his entire life.
Peter Joseph Triest, engraving published in the book “Bruxelles à travers les âges” (1884), based on a portrait by Charles Picque (1799-1869).
3. First Appointments: Mechlin and Asse
His initial pastoral assignments were in Mechlin, including Our-Lady-across-the-Dyle and Hanswijk. During a deadly typhus epidemic in 1795, Fr. Triest refused to flee. With no doctors left, he personally tended to the dying, eventually falling gravely ill himself and nearly dying—a miracle, people believed, when he recovered.
In Asse, he showed pastoral creativity, finding foster mothers for abandoned infants and working amidst social and political turmoil. A conflict over parish finances showed his moral integrity and resolve to protect the Church’s autonomy.
4. Heroism in Hiding: The Ronse Years (1797–1803)
Triest’s refusal to swear allegiance to the French Revolutionary regime forced him into hiding. From 1797 to 1802, he lived clandestinely, celebrating sacraments in barns, homes, and forests. His daily schedule, noted in a journal from 1799, reflected monastic discipline: prayer, Scripture, adoration, and even theological reading continued in secret.
A profound incident from this period involved Sergeant Cotton, a notorious priest-hunter. When Cotton’s wife was dying, Triest—at great risk—entered their home to administer the last rites. Cotton arrived mid-rite, stunned by the priest’s courage. He vowed never again to persecute clergy, and true to his word, no priests were harassed afterward in Ronse.
5. Turning Point in Lovendegem: Founding the Sisters of Charity (1803–1805)
Following political pressure, Triest was reassigned to Lovendegem. He arrived in 1803 and quickly saw the plight of orphans and the sick. That same year, he founded the Sisters of Charity of Jesus and Mary. The community grew from humble beginnings, aided by women of deep devotion like Maria Lammens and Jacoba Claeys.
Their first house—Our Lady of Angels—soon proved too small. By 1805, with the help of benefactors, the sisters moved to Terhagen Abbey in Ghent, a building once belonging to Cistercian nuns. The restoration work was grueling. Triest gave up his own bed to the patients and slept in a chair for ten days.
6. Expansion and Institutionalization of Charity
Brothers of Charity (1807)
Realizing the need for men in similar ministries, Triest founded the Brothers of Charity in 1807. Their mission expanded rapidly—caring for the mentally ill, educating poor children, and working in hospitals. Triest ensured their spirituality reflected St. Vincent de Paul’s model: humility, compassion, and divine trust.
One early success was the reform of the men’s asylum at Gerard the Devil Castle in Ghent. Conditions were inhumane; Triest intervened, removed the abusive staff, and had the brothers care for the patients with dignity and order.
Brothers of St. John of God (1823)
In 1823, Triest founded this third congregation focused on health care, particularly mental institutions. Inspired by the Spanish saint John of God, their mission was to bring order, prayer, and healing to chaotic asylums.
Sisters of the Childhood of Jesus (1835)
His final foundation, just a year before his death, addressed rural poverty and domestic servanthood. The Sisters of the Childhood of Jesus cared for neglected children and supported household workers across Belgium.
7. Spirituality: A Life Anchored in Divine Presence
Peter Joseph Triest’s inner life was shaped by silent adoration, fidelity to the Divine Office, and intense love for the Eucharist. During exile and peace alike, he structured his days around meditative prayer, Scripture, and the imitation of Christ’s humility.
He saw the poor as “suffering members of Christ,” and often referred to them in his letters and sermons as “my suffering brothers and sisters.” To the Sisters, he once wrote: “It seems as if Christ has lived for the poor only: always He was among them… You are another Christ when you go to the needy”.
8. Final Years and Death (1830–1836)
Appointed Canon of St. Bavo’s Cathedral in Ghent and administrator of civil hospices, Triest spent his final years consolidating his foundations. He continued preaching and writing spiritual advice, emphasizing Marian devotion, sacramental life, and compassion as the summit of Christian life.
He died on June 24, 1836. Originally buried in Lovendegem, his remains were moved in 1904 to the Sisters’ cemetery. A crypt was built for him and the superiors of his congregations.
9. Legacy and Veneration
Triest’s four congregations are now active across more than 30 countries. They continue to serve people with disabilities, mental illness, chronic diseases, and educational disadvantages.
A monument in St. Michael’s Cathedral in Brussels, erected by the Belgian government, honors him with the words: “He went about doing good with special concern for the destitute and the poor”.
In 2001, the three Triest congregations petitioned to open the process of beatification of their founder. This was formalized by the opening of the process in Saint Bavo’s Cathedral in Ghent on 26 August 2001 with Mgr. Arthur Luysterman, Bishop of Ghent, presiding. In addition, Brother René Stockman, Superior General of the Brothers of Charity, was appointed promoter of the Cause and Brother Eugeen Geysen was named postulator.
This historical process demanded a lot of research in the archives of the congregations and beyond. Following the death of Bro. Eugeen Geysen, a new postulator was installed on 19 November 2012, Dr. Waldery Hilgeman. At the same time, Rev. Fr. Dirk Van Kerchove was appointed episcopal delegate and Mr. Lieven Claeys was nominated as notary. Rev. Fr. Jürgen François was appointed promoter of justice. A historical commission, headed by Bro. René Stockman, tried to bring Bro. Eugeen Geysen’s work to a successful conclusion.
This historical process demanded a lot of research in the archives of the congregations and beyond. Following the death of Bro. Eugeen Geysen, a new postulator was installed on 19 November 2012, Dr. Waldery Hilgeman. At the same time, Rev. Fr. Dirk Van Kerchove was appointed episcopal delegate and Mr. Lieven Claeys was nominated as notary. Rev. Fr. Jürgen François was appointed promoter of justice. A historical commission, headed by Bro. René Stockman, tried to bring Bro. Eugeen Geysen’s work to a successful conclusion.
In 2015, the diocesan phase of the process was completed and the process was officially concluded on 15 November. It was the bishop of Ghent, Mgr. Luc Van Looy, who declared the process formally closed, sending no fewer than 22,000 pages of documents to Rome. These documents include all of Canon Triest’s writings and their translation into English, an official biography, the interrogatories of more than 50 witnesses who stated what Father Triest means to them, and anything that was ever published about Canon Triest.
On 18 November 2015, these documents were handed over to the Congregation for the Causes of Saints at the Vatican, which initiated the Roman phase of the process.
On Monday, April 14, 2025, Pope Francis recognized and promulgated the heroic virtues of the Servant of God Peter Joseph Triest, and from now on we may call him “Venerable”.
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Peter Joseph Triest was not merely a priest or founder. He was a mystic in action, a contemplative in service, and a revolutionary in charity. He saw Christ in the poor, responded with structures that endured, and passed on a spirituality of mercy that shaped modern Catholic care.
His words still echo: “Do not be dismayed by the pain the sick may cause you. Remember the Lord who gave His life for others. Can we not also give our life for others?”.
His love of and for God
But how shall I speak of you, O divine Love, since no one can grasp you. O source of love, come to the aid of my powerlessness and make the hearts feel what reason cannot comprehend. The Heart of Jesus has loved us without limit, let us love him then without limit. O God of Love, my heart, strengthened by your mercy, will burn of love for you.
If you are loved by God, try to answer his Love and try to love him in truth. The greater our desire to love God, the more our heart will be enabled to do so.
Most loving Heart of Jesus, since you ask for my heart, here it is. I give it to you. You are the only one worthy of it, and you alone can make it happy. I give it to you so that you might heal it of all wounds of pride, selfishness, attachment to myself, lack of love for my neighbour, in a word, of all my wounds. Do not leave a single one except the wound that your love has caused. Jesus Christ, my God, I desire one thing only – a place in Your heart.
Pray and meditate, for remember that a religious without the spirit of prayer is like a soldier without weapons, a bird without wings, a city without ramparts, a body without spirit or soul. Firmly resolve not to waste a single moment of prayer time.
In the sacrament of charity (the Eucharist), Christ’s love shines almost even more than in the mystery of his incarnation. In his incarnation he seemed to withdraw from his divinity, like in the holy sacrament he seems to abandon his human condition. By his incarnation he turned himself into the shape of a slave but in the Eucharist he is hidden under the guise of bread.
Mary has for us a mother’s heart, a heart full of love, a heart full of tenderness, always ready to help us. Among all the prayers the rosary is the prayer she loves best. While you are working like slaves or resting or sleeping there are thousands of holy and just souls who, at the same time, are fervently saying the holy rosary for you and for themselves. She is indeed a Mother of Mercy especially at the hour of death. The one who prays the rosary with devotion is like a spiritual bee alighting on the most beautiful flowers, in others words, on the principal mysteries of the life of Jesus in order to draw from them the honey of piety.
Those who are called to the active life must commit themselves to it with great fidelity! To act otherwise would upset the order established by Providence, but they must be careful to avoid illusion. They will deceive themselves if they do not have fixed times for the spiritual exercises of the contemplative life. The more one is exposed to the distractions inherent in one’s work, the more one should approach God through recollection so that one is constantly united with Him in charity.
His love for the neighbour, the poor person in particular
We shall nurse the sick humbly and respectfully, seeing them as though they were Jesus suffering. If certain diseases repel you, then you must rely on your strong faith, and see Jesus himself in the person before you. With the eyes of faith we shall serve the sick zealously and fervently. It is true that people have a natural aversion to the fulfilment of this task. But love should take nature’s place. Love should give us the power to banish all those feelings of sadness and revulsion. Love gives us the power nature cannot provide.
You resemble God through your love and charity; you share in the mission of Jesus Christ. And because you recognize in them the person of Jesus Christ suffering, they recognize in you the person of Jesus Christ, the Saviour and Consoler. You cannot imitate Jesus Christ more perfectly than by coming to the aid of those who live in misery.
Call me whenever you want and do not spare me, do not be afraid of disturbing me. I am happy when, in imitation of Jesus Christ, my Master, I can sacrifice for you my rest, my health, and even my life.
The Sisters will keep in mind that they are servants of the poor, and that they must serve Jesus in the persons of the poor mentally and physically ill. They will fulfil their task humbly, in all simplicity, carefully, attentively, loyally, and affectionately. Also of the most difficult patients they will take good care.
It is an honourable vocation to nurse and serve the sick. As you fulfil this service, you become a helper and a servant of God’s Providence regarding the sick. You must also realize that it is Jesus Christ himself whom you are serving when you serve the sick. It is He who benefits from your kindness, from your help. It is His limbs that you nurse with your hands.
We must keep our hearts pure when serving the sick, and we must not tolerate that any other thoughts enter our minds. It is our duty to serve the sick at all times, but it is just as much our duty to raise up our hearts to the Lord continuously, and to render God present.
It is thanks to this spirit of love that we are capable of serving the sick with so much gladness; that we are capable of helping them in everything, of consoling them and easing their pains so that they might truly believe that we serve them with all our hearts and genuine zeal. We shall approach the sick patiently. Christ inspires us with zeal so that we might be capable of facing up to all the difficulties and the revulsion that the task of nursing the sick entails sometimes.
Treat everyone with gentleness and graciousness. Try to serve and please all as much as possible. Help the sick and the poor with the greatest care and the greatest possible attention. By your gentleness, kind words and responses make up for what you cannot possibly do for or give them.
You know, alas, the sad state of the miserable poor and sick people who never enjoy a day of happiness. Giving life to such people; providing them with clothes with which they cover their limbs; preparing medicine with which their affections, true enough, cannot be fully cured but, at least, be alleviated; distributing food so that their hunger is stilled; giving and making their beds on which they can rest their wounded and sick body; granting them another more agreeable existence by cleaning and nursing their dirty, smelly and putrefying wounds. Is this not resurrecting them and waking them from the dead, making the sun shine for them, creating for them a new earth?
As a result of this privileged choice, you are called to follow the Lord in his difficult and painful life, in his zeal for the glory of his celestial Father and the salvation of souls; as also to imitate his affability, his compassion for those who are in need, every type of sick and infirm who came or were brought to Him and whom He cured, if they or those who brought them to Him had faith in Him.
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