Columbia subject headings:
Navarre (Kingdom)--Kings and rulers--Biography.
Poets, French--To 1500--Biography.
Thibaud I, King of Navarre, 1201-1253.
Harvard subject headings:
Blanche, of Castile, Queen, consort of Louis VIII, King of France, 1188-1252.
Champagne (France)--History.
France--History--Louis IX, 1226-1270.
Navarre (Kingdom)--Kings and rulers--Biography.
Poets, French--To 1500--Biography
Thibaud I, King of Navarre, 1201-1253
Trouvères.
Princeton subject headings:
Blanche, of Castile, Queen, consort of Louis VIII, King of France, 1188-1252.
Champagne-Ardenne (France)--History.
France--History--Louis IX, 1226-1270.
France--Kings and rulers--Biography.
Poets, French--To 1500--Biography.
Thibaud I, King of Navarre, 1201-1253.
Trouvères.