Blanche of Bourbon (1339–1361) was Queen of Castile as the wife of King Peter. She was one of the daughters of Peter I, Duke of Bourbon and Isabella of Valois.

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Quick Facts Queen consort of Castile and León, Tenure ...

Blanche of Bourbon
Queen consort of Castile and León
Tenure	1353–1361
Born	1339
Died	1361 Medina Sidonia
Spouse	Peter of Castile
House	House of Bourbon
Father	Peter I, Duke of Bourbon
Mother	Isabella of Valois

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On 3 June 1353, aged 14, she married in person at Valladolid, Spain, King Peter of Castile. Previously, on 2 July 1352, the treaty of alliance between France and Castile and the marriage contract were signed, which was ratified five days later in France by King John II, while on 4 November of the same year, King Peter did the same in Castile. It is believed by historians that King Peter had married his lover, the Castilian noble Maria de Padilla before his marriage to Blanche, though he did deny this. There were many difficulties by the French in getting the money promised as a dowry for Blanche.

Three days after their marriage, Peter abandoned Blanche for Maria de Padilla, with whom he later had four children.

Eventually Blanche was imprisoned in the castle of Arévalo and then in the Alcázar of Toledo. Blanche's cousin, John II of France, appealed to Pope Innocent VI to have Peter excommunicated for keeping Blanche imprisoned, but the Pope refused. Blanche and Peter had no children.

In 1361, Blanche was transferred to the town of Medina Sidonia, where she was kept distant from possible rescue by the forces from Aragon and France battling King Peter. The Pope advocated for her release.

In 1361, after Peter had made peace with the King of Aragon, he returned to Seville and hoped to eliminate the last bastions of resistance to his rule. According to Pero López de Ayala, he then instructed Iñigo Ortiz de Estuñiga, who was charged with keeping his wife imprisoned in Medina Sidonia, to kill her. Ayala, who had later joined with a winning faction led by Henry II, states that to Peter's anger, Estuñiga declined because the act was treasonous and likely to cause further disorder in the kingdom. The King demanded that she be handed over to Juan Pérez de Rebolledo of Jeréz, a crossbowman of the king, who carried out the execution.^[1] However, partisans over the years were to write divergent stories about these events, depending on whether you looked upon him as "the cruel" (el Cruel) or "the purveyor of justice" (el Justiciero).^[2] During the 19th century, while Spain was ruled by the Bourbon monarchy, her tomb was provided with the following inscription in Latin:

CHRISTO OPTIMO MAXIMO SACRUM. DIVA BLANCA HISPANIARUM REGINA, PATRE BORBONEO , EX INCLITA FRANCORUM REGUM PROSAPIA, MORIBUS ET CORPORE VENUSTISSIMA FUIT; SED PRAEVALENTE PELLICE OCCUBVIT IUSSU PETRI MARITI CRUDELIS ANNO SALUTIS MCCCLXI. AETATIS VERO SUAE XXV

Sacred to Christ the best and greatest. Blessed Blanche, Queen of Spain, of Bourbon father, from the renowned lineage of the Kings of France, was lovely in manners and body; but, his concubine being favored over her, she lay down here by order of her husband Peter the Cruel in the year of salvation 1361 at the age of 25.

However, whether Peter did have her assassinated is a controversial claim. Zuñiga who amended Ayala's chronicles notes that partisans of the king called it a natural death. Others question such events, since she did not die in Jeréz, but in Medina Sidonia as per contemporary accounts. Also different versions of Ayala's chronicles make a different statement, saying that she was poisoned by herbs (le fueron dadas yerbas). This latter statement was also repeated by Juan de Mariana in his history.^[3]

It is not surprising that the history of Peter was rewritten in later years. Male descendants of King Henry II, the bastard half-brother of King Peter, and his slayer, would end up marrying female descendants of Peter. Henry III, who was grandson of Henry II, would marry Catherine of Lancaster, the daughter of John of Gaunt, the Duke of Lancaster, and Constance of Castile, daughter of Peter. Thus subsequent descendants of the joined lines would try to ameliorate the iniquity of Peter chronicled by the faction of Henry II. On the other hand, Bourbon rulers had a stake in sanctifying the image of Blanche, a distant member of their ancestral lineage.^[4]