Columbia subject headings:
Harvard subject headings:
Achaia (Greece)--History.
Achaia (Greece)--Kings and rulers--Biography.
French--Greece--Achaia--Biography.
French--Greece--Achaia--History.
Greece--History--353-1453.
Nobility--France--Biography
Nobility--Greece--Biography.
Saint-Omer family.
Princeton subject headings:
Achaia (Greece)--History.
Achaia (Greece)--Kings and rulers--Biography.
French--Greece--Achaia--Biography.
French--Greece--Achaia--History.
Greece--History--323-1453.
Nobility--France--Biography.
Nobility--Greece--Biography.
Saint-Omer family.