The Congregation of Holy Cross, abbreviated CSC, is a Catholic clerical religious congregation of pontifical right for men founded in 1837 by Basil Moreau, in Le Mans, France.

Our Lady of Sorrows, Our Lady of Dolours, the Sorrowful Mother or Mother of Sorrows, and Our Lady of Piety, Our Lady of the Seven Sorrows or Our Lady of the Seven Dolours are names by which Mary, mother of Jesus, is referred to in relation to sorrows in life. As Mater Dolorosa, it is also a key subject for Marian art in the Catholic Church.