Columbia subject headings:
Christian women saints in art.
Empresses in art.
Helena, Saint, approximately 255-approximately 330--Art.
Portrait sculpture, Roman.
Portraits, Roman.
Harvard subject headings:
Helena, Saint, approximately 255-approximately 330.
Sculpture, Early Christian.
Sculpture, Roman.
Women in Christianity--History--Early church, ca. 30-600--Biography.
Princeton subject headings: