Maria Isabel Caldeira

On September 8, 1934, Maria Isabel took the step into religious life by entering the Contemplative Dominican Sisters in Azurara. However, her fragile health did not allow her to endure the rigors of the cloister, and she had to leave the monastery after only seven months. Back in the world, she sought to discern the divine will. In 1936, the Archbishop of Évora, Msgr. Manuel Mendes da Conceição Santos, invited her to take over the direction of the Casa de Retiros (Retreat House) of Elvas, a responsibility she officially accepted on March 20, 1936. It was in this place that she began to deploy intense charitable activity among the most destitute, investing her own fortune to found various social assistance works. Inspired by the figure of Saint Beatrice of Silva (founder of the Order of the Immaculate Conception) and under the protection of the Virgin Mary, she conceived the project of a congregation of active life dedicated to the relief of the poor. In 1939, the informal community she led settled in the ruins of the former convent of Santa Clara in Elvas. On December 20, 1939, Msgr. Manuel Mendes da Conceição Santos canonically erected this community as a "Pia União" (Pious Union) under the name of Conceptionist Sisters at the Service of the Poor (Irmãs Concepcionistas ao Serviço dos Pobres), naming Maria Isabel as superior. Despite numerous material difficulties and health trials, the work developed and spread to other dioceses in Portugal. In 1943, the first constitutions of the institute were drafted. After a long journey of discernment and procedures with the Holy See, the congregation received official approval from Pope Pius XII on July 5, 1955. On December 20 of the same year, the institute was canonically erected and the founder, under the name of Mother Maria Isabel of the Most Holy Trinity (Madre Maria Isabel da Santíssima Trindade), pronounced her perpetual vows.

Mother Maria Isabel of the Most Holy Trinity passed away on July 3, 1962, in Elvas, after a life entirely consumed in the service of the most destitute. She was initially buried in the family vault in Santa Eulália. On December 20, 1980, her mortal remains were solemnly transferred to the chapel of the congregation's Motherhouse in Elvas, where they now rest. As the reputation of holiness of the foundress continued to grow, the General Council of the congregation decided in 1996 to introduce her cause for canonization. The diocesan inquiry process regarding her life, virtues, and reputation of holiness was officially opened on July 5, 1998, in the Archdiocese of Évora by Archbishop Mgr Maurílio Jorge Quintal de Gouveia. After hearing numerous witnesses, the diocesan process was closed on July 5, 2000. On November 17, 2000, the Congregation for the Causes of Saints issued the decree of legal validity for the diocesan inquiry.

The cause is proceeding in Rome with the drafting of the Positio on the heroic nature of her virtues. On July 5, 2013, Pope Francis authorized the promulgation of the decree recognizing the heroic virtues of the Servant of God Maria Isabel Picão Caldeira (in religion Mother Maria Isabel of the Most Holy Trinity), thereby conferring upon her the title of Venerable. For her beatification to be pronounced, the official recognition of a miracle attributed to her intercession by the Dicastery for the Causes of Saints is required.

The spirituality of the Venerable Maria Isabel of the Most Holy Trinity is based on a radical evangelical stripping away: born wealthy, she made herself poor to serve and prioritize the poor. Her spiritual journey is deeply Eucharistic and Marian, marked by a filial devotion to the Immaculate Conception and Saint Beatrice of Silva. She also drew from the spirit of simplicity and joyful humility of Saint Francis of Assisi. On November 17, 1960, sensing her approaching end, she wrote her "Spiritual Testament," a text exhorting her spiritual daughters to live in fraternal charity, poverty, and unconditional service to the most needy. The legacy of Mother Maria Isabel remains alive through the Congregation of the Conceptionist Sisters in the Service of the Poor. Initially established in Portugal, the work opened itself to the mission ad gentes and today extends internationally, with active communities in Italy, Mexico, Mozambique, and East Timor, where sisters and laypeople continue her mission among the most destitute.