Editing Blanche of Castile (section)

==Issue==
# Daughter (1205 – died soon after).<ref>Kerrebrouck records the birth of this daughter, and her death soon after her birth. P. Van Kerrebrouck, ''Les Capétiens 987–1328'', Villeneuve d'Asq, 2000, p. 124; [[Anselm de Guibours|Père Anselme]] notes ''[une] fille née en 1205 et mourut jeune'' as the eldest child of Louis VIII and Blanche of Castile. Père Anselme, Tome I, p. 83.</ref>
# Philip (9 September 1209 – before July 1218), betrothed in July 1215 to [[Agnès II, Countess of Nevers|Agnes of Donzy]].
# Alphonse (b. and d. Lorrez-le-Bocage, 26 January 1213), twin of John.
# John (b. and d. Lorrez-le-Bocage, 26 January 1213), twin of Alphonse.
# [[Louis IX of France|Louis IX]] (Poissy, 25 April 1214 – 25 August 1270, Tunis), King of France as successor to his father.
# [[Robert I, Count of Artois|Robert]] (25 September 1216 – 9 February 1250, killed in battle, Manssurah, Egypt), Count of Artois.
# John (21 July 1219 – 1232), Count of Anjou and Maine; betrothed in March 1227 to Yolande of Brittany.
# [[Alphonse, Count of Poitiers|Alphonse]] (Poissy, 11 November 1220 – 21 August 1271, Corneto), Count of Poitou and Auvergne, and by marriage, of Toulouse.
# Philip Dagobert (20 February 1222 – 1234<ref>The Chronicle of Alberic de Trois-Fontaines records the death in 1232 of "''duo de fratribus regie Francie, Iohannes et Dagobertus''". ''Chronica Albrici Monachi Trium Fontium'' 1232, ''Monumenta Germaniæ Historica Scriptorum'', vol. XXIII, p. 930.</ref>).
# [[Isabelle of France (saint)|Isabelle]] (March 1224<ref>The ''Chronicon Turonense'' records the birth in 1224 "''mense martio''" of "''Isabellis, filia Ludovici Regis Franciæ''". Chronicon Turonense, ''Recueil des historiens des Gaules et de la France'', vol. XVIII, p. 305.</ref> – 23 February 1270).
# Etienne (end 1225<ref>The ''Chronicon Turonense'' records the birth in 1225 (at the end of the text dealing with events in that year) of "''Stephanus, Ludovici Regis Francorum filius''" and his baptism in Paris. Chronicon Turonense, Recueil des historiens des Gaules et de la France, vol. XVIII, p. 313. He must have been born after the testament of King Louis VIII dated June 1225 which only names five (surviving) sons. ''Layettes du Trésor des Chartes'', vol. II, 1710, p. 54.</ref> – early 1227<ref>The ''Chronicon Turonense'' records that King Louis VIII left six sons (in order) "''Ludovicum primogenitum, Robertum, Amfulsum, Johannem, Dagobertum id est Philippum, et Stephanum''" and one daughter "''Isabellam''" when he died. Chronicon Turonense, Recueil des historiens des Gaules et de la France, vol. XVIII, p. 317.</ref>).
# [[Charles I of Naples|Charles]] (end 1226/early 1227 – 7 January 1285), Count of Anjou and Maine, by marriage Count of Provence and Folcalquier, and King of Sicily.