One of eight children born to Martina and Manuel de la Mata Aparicio. Studied in Valladolid, Spain. Joined the Augustinians on 9 September 1921, taking his solemn vows on 23 January 1927. Studied in Pisuerga, Spain and then at the monastery of Saint Maria La Vid in Burgos, Spain. Ordained on 25 July 1930. Taught at the College La Encarnación in Llanes, Spain. Missionary to Brazil in July 1931. He became known as the messenger of charity to the poorest of the poor. Teacher and coordinator of teaching throughout the missionary region.
- 5 November 2006 by Pope Benedict XVI
- recognition celebrated at the cathedral in São Paulo, Brazil, Cardinal José Saraiva Martins chief celebrant
- “Blessed Mariano de la Mata Aparicio“. CatholicSaints.Info. 29 October 2015. Web. 28 November 2015. <>