Tereza Margarida of the Heart of Mary OCD (born Maria Luiza Rezende Marques; 24 December 1915 – 14 November 2005), was a Brazilian Discalced Carmelite nun from the interior of the state of Minas Gerais.

[1] She was known as nossa mãe ("our mother") by virtue of her welcome, prayers and advice to those who sought her.

[2] Pope Francis recognized her heroic virtues in May 2023.

[3][4][5] On 4 March 2012 the diocesan phase of the process began, with the collection of testimonies on the legacy of Tereza Margarida of the Heart of Mary.

[6] The phase was completed on May 12 of the following year, and all the material on Mother Teresa's legacy was sent to the Congregation for the Cause of Saints in the Vatican.