King Manuel I - The fortunate King of Portugal
King Manuel I was one of the most successful kings in Portuguese history. During his reign Portugal discovered the sea route to India, reached Brazil, and built a global trading empire. Yet his private life was almost as remarkable as his achievements.
Manuel married three times, and each marriage was tied to the great dynastic politics of Spain and Europe.
His first wife was Isabella of Aragon, the eldest daughter of the Catholic Monarchs, Ferdinand and Isabella of Spain. She had originally been married to Prince Afonso of Portugal, the heir to the Portuguese throne. When Afonso died in a riding accident, Isabella eventually married Manuel after he became king. Their marriage carried enormous political significance because Isabella was heir to Castile and Aragon. If their son survived, he could potentially unite Portugal and Spain under one crown.
In 1498 Isabella gave birth to a son, Miguel da Paz. For a brief moment the infant was heir to Portugal, Castile, and Aragon. He represented the possibility of a united Iberian kingdom decades before Spain and Portugal would later be joined under the Habsburgs. But tragedy struck twice. Isabella died in childbirth, and young Miguel died before reaching his second birthday. The dream of a united Iberian monarchy disappeared with him.
Manuel then married Isabella's younger sister, Maria of Aragon. The marriage strengthened Portugal's alliance with Spain and proved far more successful in terms of children. Maria gave Manuel ten children, including the future King João III of Portugal. She spent much of her married life pregnant and eventually died in 1517 after years of repeated childbirths. During her seventeen years as queen, she became the mother of a generation of Portuguese princes and princesses who would marry into the leading royal houses of Europe.
After Maria's death, the fifty-year-old Manuel shocked many observers by seeking a much younger bride.
The chosen bride was Eleanor of Austria, a Habsburg princess and granddaughter of Ferdinand and Isabella. In other words, she was the niece of Manuel's first two wives.
What made the situation even more extraordinary was that Eleanor had initially been considered as a bride for Manuel's son and heir, Prince João, the future João III. Diplomatic negotiations had explored a marriage between the young prince and Eleanor. Instead, Manuel himself decided to marry her. The father took the bride who had been intended for the son. Eleanor was only nineteen years old; Manuel was almost fifty.
The marriage was driven by politics rather than romance. Europe was changing rapidly. The Habsburg dynasty was becoming the dominant power on the continent, and Manuel wanted Portugal closely connected to the rising fortunes of the future Emperor Charles V, Eleanor's brother. By marrying Eleanor himself, Manuel secured a direct alliance with the most powerful family in Europe.
Contemporaries could hardly ignore the awkward family relationships that resulted. Manuel had first married Eleanor's aunt Isabella, then her aunt Maria, and finally Eleanor herself. Meanwhile, after Manuel's death, João III married Eleanor's younger sister Catherine of Austria. Father and son had married two sisters.
It sounds almost unbelievable to modern ears. Manuel married two sisters and then their niece. His son then married the niece's sister. The royal family tree began to resemble a circle. The episode has often encoraged people to look for signs of rivalry between Manuel I and João III. Some have even even suggested that João’s extensive rebuilding of the convent of Christ was influenced by a desire to overshadow his fathers legacy. However historians have found no direct evidence connecting the event to to the architectural changes made surrounding the famous Manuline window. After all, it would have been much simpler to alter his fathers church than overshadow it with a complex monument the size of the convent.
Manuel died in 1521, only three years after marrying Eleanor. She later returned to the Habsburg court and eventually became Queen of France. João III succeeded his father and continued the dynasty that Manuel had worked so hard to secure through his marriages.
The story of Manuel's wives reveals how royal marriages were rarely about love. They were diplomatic tools used to create alliances, secure heirs, and shape the future of kingdoms. Yet in Manuel's case, those political calculations produced one of the most remarkable and complicated marriage stories in European royal history.
Sources
Damião de Góis, Crónica do Felicíssimo Rei D. Manuel
Jerónimo Osório, De Rebus Emmanuelis Regis Lusitaniae Invictissimi Virtute et Auspicio Gestis (The Deeds of King Manuel of Portugal)
A.R. Disney, The Portuguese Empire, 1415–1808
Malyn Newitt, Portugal in European and World History
Ian Robertson, A Traveller's History of Portugal
Kathleen Wellman, Queens and Mistresses of Renaissance France
Encyclopaedia Britannica, "Manuel I"
Encyclopaedia Britannica, "Eleanor of Austria"
Oxford Dictionary of National Biography, "Manuel I of Portugal"
Oxford Dictionary of National Biography, "Eleanor of Austria"
Joaquim Veríssimo Serrão, História de Portugal, Volume III: O Século de Ouro (1495–1580)
H.V. Livermore, A New History of Portugal
Rui Ramos (ed.), História de Portugal
Jean Dumont, Leonor de Áustria: Rainha de Portugal e de França