Elisa Angela Meneguzzi was an Italian Roman Catholic professed religious and a member of the Sisters of Saint Francis de Sales. She assumed the religious name of "Liduina" upon making her solemn profession into the order. She also served in the missions in Ethiopia where she became known for her care of the ill and for her efforts at increased ecumenism; this earned her two titles: "Sister Gudda" and the "Ecumenical Flame".