The woman who upheld the Crown during one of the most turbulent periods of the Middle Ages
The medieval queens of Castile played a political role that has often been overshadowed by the prominence of the monarchs, although some had to make decisive decisions to maintain the stability of the kingdom. Among them stands out María de Molina, a woman who faced noble conspiracies, succession disputes, and threats from other kingdoms while defending her family's rights to the Crown.
Her intervention was fundamental during three reigns: that of her husband, Sancho IV, that of her son Fernando IV, and that of her grandson Alfonso XI—three generations that found in her a figure capable of keeping the authority of the monarchy alive when it seemed to be in danger.
From Castilian noblewoman to queen alongside Sancho IV
María Alfonso de Meneses, known as María de Molina, was born around 1264 and belonged to a family of the Castilian nobility.
In 1282, she married Sancho, son of Alfonso X the Wise, in a union that would have major political consequences. When Sancho ascended the throne in 1284, María became queen of Castile, but her position was far from secure.
The marriage had been celebrated without the necessary papal dispensation due to the relationship between the spouses, and this circumstance fueled doubts about the legitimacy of their union and their descendants. In a monarchy where succession rights could decide the fate of an entire kingdom, this issue represented a constant threat to the royal family.
María had to defend the position of her husband and her children while participating in the political life of the court. When Sancho IV died in 1295, he left Fernando, barely nine years old, as heir, so she, as his widow, assumed a responsibility that would mark the rest of her life.
The three times she saved the throne of Castile
First time: by defending the throne of Fernando IV
The death of Sancho IV opened a period of serious conflict, as Fernando IV was a minor and his rights were questioned by various members of the royal family, including the Infantes Juan and Enrique and the descendants of Infante Fernando de la Cerda. Internal disputes were compounded by pressure from Portugal and Aragon, which intervened in the Castilian conflicts.
María de Molina had to negotiate with nobles and city representatives, seek support, and restrain those who intended to take advantage of the young monarch's weakness. Her diplomatic ability proved essential to upholding the Crown at a time when several factions aspired to control power.
In 1301, Pope Benedict VIII granted the dispensation that legitimized the marriage of María and Sancho, and the resolution reinforced the dynastic rights of Fernando IV, helping to close one of the main avenues for challenging his reign.
María had succeeded in securing her son's throne after years of uncertainty.
Second time: by maintaining the monarchy during her son's reign
Although Fernando IV reached the age of majority in 1301, noble tensions did not disappear, and the Crown continued to depend on difficult political balances. Meanwhile, María maintained considerable influence thanks to her experience and the confidence she inspired in various sectors of the kingdom.
On the other hand, the death of Fernando IV in 1312 once again placed Castile before a delicate succession, as his son, Alfonso XI, was barely a year old and needed protection while members of the royal family argued over who should exercise guardianship and regency.
María, who had already defended her son's rights, faced a similar crisis, this time in favor of her grandson.
Third time: by protecting Alfonso XI until the end
Alfonso XI's minority sparked new rivalries among those aspiring to lead the kingdom. The Infantes Pedro and Juan, the monarch's uncles, defended their own positions, while the cities and noble groups were divided over the choice of regents.
María de Molina intervened in the negotiations and managed to consolidate her role as Alfonso XI's guardian after the agreements reached in Palazuelos in 1314. From then on, her priority was to preserve the child's rights and prevent the power struggles from destroying the authority of the Crown.
She died in Valladolid on July 1, 1321, when her grandson was still a minor, so she did not live to see his personal reign. However, she left behind a monarchy that had survived successive dynastic crises, and her life story explains why María de Molina holds a prominent place among the medieval queens of Castile: she was the wife, mother, and grandmother of kings, and in the most uncertain hours, she acted as one of the main defenders of the continuity of the throne.
