*Louis IX King of France
born 25 April 1215 Château De Poissy, Poissy, Isle De France
died 25 August 1270 near Tunis, Tunisia

father:
*Louis VIII King of France
born 3 September 1187 Paris, Isle De France, France
died 8 November 1226 Château de Montpensier, Auvergne, France

mother:
*Blanca Alphonsa Princess of Castile
born before 4 March 1187/88 Château de Palencia, Valencia, Almohadi
died 27 November 1252 Palais Du Louvre, Paris, France
married 23 May 1299 Pont Audemer, Normandie

siblings:
Princess of France born 1205 Paris, Isle De France died 1206
Philippe Prince of France born 9 September 1209 Paris, Isle De France died about 1218
Princess of France born 1213 France died about 1213
*Robert I Count of Artois born September 1216 Paris, Isle De France died 8 February 1249/50 Egypt
Philippe Prince of France born about 1218 Paris, Isle De France died about 1220
Jean Prince of France born September 1219 Paris, Isle De France died 1232
Alphonse Prince of France born 11 November 1220 Paris, Isle De France died 21 August 1271 Corneto Castle, Corneto, Italy
Philippe Dagobert Prince of France born 20 February 1221/22 Paris, Isle De France died 1232
Isabelle Princess of France born March 1223/24 Paris, Isle De France died 23 February 1268/69
Etienne Prince of France born 1225 Paris, Isle De France
*Charles I King of Sicily born 21 March 1226/27 Paris, Isle De France
died 7 January 1284/85 Foggia Castle, Foggia, Apulia

spouse:
*Marguerite de Provence Queen of France
born 1221 St. Maime, Forcalquier, Bourgogne
died 21 December 1295 Paris, Isle De France, France
married 27 May 1234 Sens, Yonne, France

children:
Blanche Princess of France born 4 December 1240 Poissy, Isle De France, France
died 29 April 1243
Isabelle Princess of France born 2 March 1241/42 Poissy, Isle De France, France
died 28 January 1270/71 Hieres, Provence, France
Louis Prince of France born 21 September 1243 Poissy, Isle De France, France
died before 13 January 1258/59
*Philippe III "le Hardi" ("the Bold") King of France
born 1 May 1245 Poissy, Yvelines, France
died 5 October 1285 Perpignan, Pyrenees-Oriental, France
Jean Prince of France born about 1247 Poissy, Isle De France, France died 10 March 1247/48
Jean Tristan Prince of France born 8 April 1250 Damietta, Egypt died 3 August 1270 near Tunis, Tunisia
Pierre Prince of France born 1251 Paris, Isle De France died 6 April 1284 Salerno, Sicily
Blanche Princess of France born 1253 Jaffa, Palestine died 17 June 1320 Paris, Isle De France
Marguerite Princess of France born 1254 Paris, Isle De France, France died 1271
Robert Prince of France born 1256 Paris, Isle De France, France died 7 February 1316/17
Agnes Princess of France born 1260 Paris, Isle De France, France died 1327 Abbaye de Citeaux

biographical and/or anecdotal:

notes or source:
LDS
ancestry.com