Ferdinand de la Cerda (1253-1275) was the Crown Prince of Castile, eldest son of King Alfonso X of Castile and Violante of Aragon. His nickname, de la Cerda, means "of the hairs" in Spanish, a reference to his being born with hair sprouting from his chest. For broader historical context, see 1250s and 13th century. ... Events Eleanor de Montfort is captured by pirates in the employ of Edward I of England to prevent her marriage to Llywelyn the Last, prince of Jews over the age of 7 to wear the yellow badge and makes usury illegal Jean de Meun writes the second portion of the... A former kingdom of Spain, Castile comprises the two regions of Old Castile in north-western Spain, and New Castile in the centre of the country. ... Alfonso X and his court. ...

In November 1268 he married Princess Blanche of France, the daughter of King Louis IX of France. They had two sons: Only representation of Saint Louis known to be true to life - Early 14th century statue from the church of Mainneville, Eure, France King Louis IX of France or Saint Louis (April 25, 1214/1215–August 25, 1270) was King of France from 1226 until his death. ...

1. Alfonso (1270-1324), who married Mafalda of Narbonne, Lady of Lunel, daugher of Aimerico VI of Narbonne and Sibila of Foix. They had three sons and three daughters.
2. Fernando (1275-1322), who married Juana Núñez de Lara, called "la Palomilla", Lady of Lara & Herrera, daughter of Juan Núñez de Lara “el Mayor” and Teresa Álvarez de Azagra. They had one son and three daughters.

Ferdinand predeceased his father in 1275 at Ciudad Real. His sons did not inherit the throne of their grandfather, since their uncle, the second son, Sancho, enforced his claim, even by rebelling. Ciudad Real is a city in Castile-La Mancha, Spain, the capital of the province of Ciudad Real. ... Sancho IV the Brave (1257/58 - April 25, 1295) was a king of Castile and León (1284 - 1295). ...