Columbia subject headings:
John, King of England, 1167-1216.
Poitou (France)--History.
Savaric, de Mauléon, active 1180-1232.
Harvard subject headings:
John, King of England, 1167-1216
Poitou (France)--History.
Savaric de Mauléon, active 1180-1232.
Princeton subject headings:
John, King of England, 1167-1216.
Poitou (France)--History.
Savaric de Mauléon, fl. 1180-1232.