Mary of the Divine Heart, German nun and saint (d. 1899)

Mary of the Divine Heart (Münster, 8 September 1863 – Porto, 8 June 1899), born Maria Droste zu Vischering, was a German noblewoman and Roman Catholic nun of the Congregation of Our Lady of Charity of the Good Shepherd, best known for having influenced Pope Leo XIII to make the consecration of the world to the Sacred Heart of Jesus. Pope Leo XIII himself called the solemn consecration "the greatest act of my pontificate".