Blanche de Castille was born in Valencia, Spain, can you provide me with detail

Question:Hello and I hope you can help me find information about the Queen of France, Blanche of Castille born in Valencia, Spain. Can you email rcruz724@yahoo.com to obtain any information about this family and it's present connection to the people of Valencia, Spain. Where any palacios named after then and are there any living family living today in Valencia, Spain or France. If so, I would like to make a real life connection becuase I have reason to believe that they are family blood ties to me and I too them. I have no interest in monetary benefits, but there is a genealogy connection that I would love to discover and connect with. Yours Truly, Robert W. Cruz de Blanche, Ph.D.

Best Answer - Chosen by Asker: Hello and I hope you can help me find information about the Queen of France, Blanche of Castille born in Valencia, Spain. Can you email rcruz724@yahoo.com to obtain any information about this family and it's present connection to the people of Valencia, Spain. Where any palacios named after then and are there any living family living today in Valencia, Spain or France. If so, I would like to make a real life connection becuase I have reason to believe that they are family blood ties to me and I too them. I have no interest in monetary benefits, but there is a genealogy connection that I would love to discover and connect with. Yours Truly, Robert W. Cruz de Blanche, Ph.D.

www.familysearch.org

Blanche de CASTILLE
Sex: F
Birth: 4 Mar 1188
Valencia, Almohadi, Spain
Death: 26 Nov 1252
Melun, France
Marriage(s)
Spouse: Louis VIII le Lion de FRANCE
Sex: M
Birth: 12 Sep 1187
Paris,75000,Seine,Parisienne,France
Death: 15 Oct 1226
Montpensier,63,Puy de Dome,Auvergne,France
Number of Marriages: 1
Number of Children: 1
(NOTE: going by these dates, she was 12 when they got married, and he was 13)

Blanche's Parents :
Father: Alphonse VIII le Noble de Castille
Sex: M
Birth: 11 Nov. 1155--Soria, Spain
Death: 6 August1214--Gutierre-Munoz, Spain

Mother: Aleonor d' Angleterre (Eleanor of England)
Sex: F
Birth: Oct. 13,1162
Death: Oct. 31, 1214
(Note: She was only 8 years old when she married Alphonse in 1170)

http://en.wikipedia.org/wiki/Blanche_of_...

Blanche of Castile (March 4, 1188 – November 26, 1252), wife of Louis VIII of France. She was born in Valencia, Spain, the third daughter of Alfonso(or Alphonse) VIII, king of Castile, and of Eleanor of England. Eleanor was a daughter of Henry II of England and his Queen consort Eleanor of Aquitaine.

In consequence of a treaty between Philip Augustus and John of England, Blanche's sister Urraca was betrothed to the former's son, Louis. Their grandmother Eleanor, upon getting acquainted with the two sisters, judged that Blanche's personality was more fit for a queen of France. In the spring of 1200 she brought her to France instead. On May 22, 1200 the treaty was finally signed, John ceding with his niece the fiefs of Issoudun and Gracay, together with those that Andreé de Chauvigny, lord of Chateauroux, held in Berry, of the English crown. The marriage was celebrated the next day, at Portmort on the right bank of the Seine, in John's domains, as those of Philip lay under an interdict.

Blanche first displayed her great qualities in 1216, when Louis, who on the death of John claimed the English crown in her right, invaded England, only to find a united nation against him. Philip Augustus refused to help his son, and Blanche was his sole support. The queen established herself at Calais and organized two fleets, one of which was commanded by Eustace the Monk, and an army under Robert of Courtenay; but all her resolution and energy were in vain. Although it would seem that her masterful temper exercised a sensible influence upon her husband's gentler character, her role during his reign (1223-1226) is not well known.

Upon his death he left Blanche regent and guardian of his children. Of her twelve or thirteen children, six had died, and Louis, the heir – afterwards the sainted Louis IX – was but twelve years old. The situation was critical, for the hard-won domains of the house of Capet seemed likely to fall to pieces during a minority. Blanche had to bear the whole burden of affairs alone, to break up a league of the barons (1226), and to repel the attack of the king of England (1230). But her energy and firmness overcame all dangers. There was an end to the calumnies circulated against her, based on the poetical homage rendered her by Theobald IV of Champagne, and the prolonged stay in Paris of the papal legate, Romano Bonaventura, cardinal of Sant' Angelo.

The nobles were awed by her warlike preparations or won over by adroit diplomacy, and their league was broken up. St Louis owed his realm to his mother, but he himself always remained somewhat under the spell of her imperious personality. After he came of age, in 1234, her influence upon him may still be traced. The same year, he was married, and Blanche became Queen mother. In 1248 she again became regent, during Louis IX's absence on the crusade, a project which she had strongly opposed. In the disasters which followed she maintained peace, while draining the land of men and money to aid her son in the East. At last her strength failed her. She fell ill into a bale of hay at Melun in November 1252, and was taken to Paris, but lived only a few days. She was buried at Maubuisson.

(Note: this is but a part of her story on wikipedia)

http://en.wikipedia.org/wiki/Blanche_of_...
Per this article, Blanche died in 1252.
Please forgive me if incorrect, but it would appear that your effort is to find a list of her descendants, and 'fit' yourself into that list. Unfortunately, this approach is contrary to basic genealogical process, since it does not rely on methods that make your research reliable.
This does not say that no, you do not have a link to her. What I am saying is that it is critical and basic, that you work from yourself BACK, AND confirm your factual information, each step back. The whole purpose of doing so, is that you avoid trying to find "any" descendant or relying on chance. No one can say with certainty that anyone livind today in Valencia would or would not be related, since we have no access to personal records of any living person.
The wording of your question indicates that you are not working backwards..but trying to work from Blanche "down" to the present. I apologize if incorrect, but this is all we have to work with.
The ONLY way to determine if YOU personally have a connection to this family, is by using your own family records of your ancestors.
Also... answers to questions in this site, are normally posted on this area. This differs from 'queries' posted in other websites, which remain posted online. The questions here only remain for a few days, after which they are 'closed' and scroll off. The reason for the answers being available, is that this is set up as a friendly 'competition' for best answer. Requests for emailing results/information defeats that.