Teresa Margaret of the Sacred Heart, OCD (15 July 1747 – 7 March 1770) was an Italian Discalced Carmelite nun.

An alumna of the monastery school had returned to bid farewell to her former teachers, as she was entering the community of Discalced Carmelite nuns in the city.

Eventually following that call, on 1 September 1764, she formally submitted her request for admission to the assembled Discalced Carmelite nuns of the Monastery of St. Teresa in Florence.

In keeping with the custom of the time, she then left the monastery for two months and stayed with a friend of the family in the city, while awaiting a formal reply to her petition.

[4] Despite the constant reprimands and humiliations inflicted on her by the prioress of the community in order to test her, she proved to be unfailingly cheerful.

On 6 March, having been forced to miss the community meal, she was eating alone in the refectory when she had a sudden attack of a pain similar to colic which left her unable to reach her room until morning.

[2] The disease that had caused Teresa Margaret's death left her body very swollen and disfigured.

[6] Seeing this, the Prior Provincial of the Discalced Carmelite friars permitted a postponement of her funeral for another 15 days.

[3] Hervé Roullet, Sainte Thérèse-Marguerite Redi, Une spiritualité du Coeur de Jésus, Coll.