Maria Matilda De Mattias (February 4, 1805 – August 20, 1866) was an Italian woman who founded the religious congregation of the Sisters Adorers of the Blood of Christ.

Commerce was disrupted; in the face of economic uncertainty and lack of steady work, young men who found it easier to live by banditry joined those who were outlaws for political reasons, holed up in mountain enclaves.

Through the preaching of del Bufalo on devotion to the Precious Blood of Jesus, Maria De Mattias was drawn to see this mystery of Christ's life as a model for self-sacrifice.

On March 4, 1834, at the age of 29, under the guidance of del Bufalo's successor, Giovanni Merlini, she founded the Congregation of the Sisters Adorers of the Blood of Christ to advance this service.

Maria De Mattias made a public vow of chastity, receiving a gold heart imprinted with three drops of blood.

On 28 June 1896, the required waiting period after De Mattias's death at that time, the process for her canonization was begun at the request of Caterina Pavoni, her successor as Superior General of the congregation then.

She was beatified October 1, 1950 by Pope Pius XII,[5] at which time her remains were transferred to the chapel of the Precious Blood at the Congregation's general motherhouse in Rome.

[4] In addition to Italy, communities are also established in Bolivia, Brazil, China, Guatemala, Liberia, South Korea the United States, and Vietnam.