Luis Marín de San Martín

Luis Marín de San Martín (born 21 August 1961) is a Spanish Catholic prelate who has served as Prefect of the Dicastery for the Service of Charity since March 2026. He previously served as joint under-secretary for the Synod of Bishops from 2021 to 2026. He has also served as general assistant for the Order of Saint Augustine at their generalate in Rome.

Biography Marín de San Martín was born in Madrid on 21 August 1961). He attended Colegio San Agustín there, an Augustinian school.

From 2008 to 2021, he was archivist and general assistant of the Augustinians and president of the Institutum Spiritualitatis Augustinianae From 2008 until Prevost left for Peru in 2014, Marín de San Martín and the future pope lived in the same Augustinian residence in Rome. with Cardinal Carlos Amigo Vallejo and Bishop Manuel Herrero Fernández as co-consecrators. In 2022, he described the development of synodality as "an irreversible process, with different speeds, full of nuances and in need of clarification, but with no turning back." He advised: "We should not be frightened by the different speeds, nor should we be anxious to achieve immediate results; the important thing is to assume a new, more coherent way of being Church, advancing serenely along this path of renewal and hope. If possible, with enthusiasm."

Works He is the author of several books and publications: Agustinos: novedad y permanencia. Historia y espiritualidad de los orígenes (Madrid, 1990) Juan XXIII. Retrato eclesiológico (John XXIII: An Ecclesiological Portrait) (Barcelona, 1998) Los agustinos. Orígenes y Espiritualidad (The Augustinians: Origins and Spirituality) (Rome, 2009) Las Iglesias Orientales (The Eastern Churches) (Madrid, 2011) San Juan XXIII, Maestro espiritual (Saint John XXIII, Spiritual teacher) (Madrid, 2014)