Background
Blanche was promised to the heir of Castile in the peace treaty between Navarre and Castile in 1436.
Blanche was promised to the heir of Castile in the peace treaty between Navarre and Castile in 1436.
She was also Princess of Asturias by marriage. Heiress of Navarre
The marriage was never consummated. In 1453, after thirteen years, Henry sought the annulment of the marriage.
An official examination confirmed the virginity of Blanche.
She remained childless throughout her life. They proclaimed her queen.
She would have thus become Blanche II of Navarre, had not her father (who wanted to keep the government of Navarre) already had her incarcerated and thus not capable to acting In 1464, she died by poison.