On the evening of the beatification ceremonies in Saint Peter's Basilica, April 27, 1947, Pope Pius XII walked over to Assunta, the mother of Maria Goretti. She almost fainted. "When I saw the Pope coming, I prayed, Madonna, please help me. He put his hand on my head and said, blessed mother, happy mother, mother of a Blessed!" They both had eyes wet with tears.^[24]

Three years later, on June 24, 1950, Pius XII canonized Goretti as a saint, the "Saint Agnes of the 20th century."^[1] Assunta was again present at the ceremony, along with her four remaining sons and daughters. She was the first mother ever to attend the canonization ceremony of her child.^[6] Alessandro Serenelli, the man who killed Maria Goretti, was also present at the canonization.^[25][26][27]

Owing to the huge crowd present, the ceremonies associated with the canonization were held outside of Saint Peter's Basilica, in the Piazza San Pietro. Pius XII spoke, not as before in Latin, but in Italian. "We order and declare, that the blessed Maria Goretti can be venerated as a Saint and We introduce her into the Canon of Saints". Some 500,000 people, among them a majority of youth, had come from around the world. Pius asked them: "Young people, pleasure of the eyes of Jesus, are you determined to resist any attack on your chastity with the help of grace of God?" A resounding "yes" was the answer.^[28]

All three of her brothers would claim that she intervened miraculously in their lives. Angelo heard her voice telling him to emigrate to America. Alessandro was reportedly miraculously given a sum of money to finance his own emigration to join Angelo. Sandrino died in the United States in 1917, and Angelo died in Italy when he returned there in 1964. The third brother, Mariano, said he heard her voice telling him to stay in his trench when the rest of his unit charged the Germans in World War I. Mariano, the only survivor of that charge, lived until 1975 and had a large family.^[5]

Her body is kept in the crypt of the Basilica of Nostra Signora delle Grazie e Santa Maria Goretti in Nettuno, south of Rome. It has been often reported that her body is incorrupt but this is not the case. Her remains are kept inside a statue which is lying down beneath the altar, which has been mistakenly believed by some to be her entire body