Columbia subject headings:
Gautier, d'Arras, active 12th century. Eracle.
Heraclius, Emperor of the East, approximately 575-641--Romances--History and criticism.
Otte, active 13th century. Eraclius--Sources.
Harvard subject headings:
Gautier, d'Arras, active 12th century. Eracle.
Heraclius, Emperor of the East, approximately 575-641--Romances--History and criticism.
Otte, active 13th century. Eraclius--Sources.
Princeton subject headings:
Gautier, d'Arras, active 12th century. Eracle.
Otte, 13th cent. Eraclius.