Saint Maria Gemma Umberta Galgani (†1903) was an Italian mystic, venerated as a saint in the Roman Catholic Church, especially in the Congregation of the Passion (Passionists). She has been called the "Daughter of the Passion" because of her profound imitation of the Passion of Christ. Galgani experienced stigmata on June 8, 1899, on the eve of the feast of the Sacred Heart and, in the subsequent rapture, Gemma saw her guardian angel in the company of the Blessed Virgin Mary. She was beatified on 14 May 1933 and canonized on 2 May 1940. Galgani's relics are housed at the Sanctuary of Santa Gemma associated with the Passionist monastery in Lucca, Italy. Since 1985, her heart is housed in the Santuario de Santa Gema, in Madrid, Spain.