Infidel : The Daughters of Aragon (Six Tudor Queens)
Author: Nicola Harris
Publication Date: March 5, 2026
Genre: Biographical HIstorical Fiction, Tudor Fiction, Historical Fiction

Born in the glittering courts of Castile and Aragon and forged in the shadow of war, Catalina de Aragón grows up surrounded by queens, rebels, and explorers. She is her mother’s last daughter, the final jewel of a dynasty built on conquest and faith, and the one child Isabella of Castile cannot bear to lose.

But destiny has already claimed Catalina.

Promised to Prince Arthur of England since childhood, she is raised to bind kingdoms, soothe old wounds, and carry the hopes of an empire across the sea. Yet, Spain fractures under rebellion, grief, and the ruthless zeal of its own rulers.

From the burning streets of Granada to the storm‑lashed Bay of Biscay, Catalina and her sisters must navigate a treacherous path shaped by ambition, betrayal, and the dangerous love of men who fear the power of queens. She learns to read cyphers, to read hearts, and to stand unbroken even as her childhood is stripped from her piece by piece.

And when she finally sails for England armed with her mother’s lessons, her father’s steel, and the ghosts of the Alhambra at her back, Catalina steps into her fate not as a girl, but as a force.

A princess.

A survivor.

A daughter of Aragon.

Infidel is the story of a young woman raised for greatness and destined to reshape the fate of nations. This is Catalina, as she has never been seen before. She is fierce, vulnerable, and unforgettable.

A sweeping, intimate portrait of sisterhood, survival, and the making of a dynasty, Infidel reveals the hidden lives of a woman whose courage shaped the Tudor world.

Any Triggers: Grief, mild peril, the Spanish Inquisition, enslaved people, death in childbirth and miscarriage.

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Guest Post:

My research for Infidel began long before I ever thought of writing a novel about Catherine of Aragón. It began on a beach in Tenerife, years before tourism transformed the island. To a child, it felt like another world. The light, the heat, the colours, the food, the rhythm of life.

I was fortunate enough to spend a great deal of time with a Spanish family who welcomed me into their home and their culture year after year. They taught me fragments of their language and, more importantly, the stories that shaped their history. Through them, I first encountered the world of Muslim Spain and the Catholic warrior monarchs who fought to reclaim it. It was impossible not to be fascinated.

Catalina’s mother, Isabella of Castile, stood out immediately. She was disciplined, relentless, and utterly convinced of her divine purpose. She was also a mother raising her children in a kingdom defined by conflict.

That tension between power and vulnerability became the foundation of my interest in Catalina’s early life. Before she was a queen, she was a child shaped by siege warfare, political ambition, and the expectations of a dynasty that demanded strength from its daughters.

As I began to research more deeply, I found myself drawn to the wider world that touched Catalina’s childhood. I have always been captivated by the fall of Constantinople and the Turkish Sultan Mehmed II’s audacious plan to take the city.

On a trip to Turkey a few years ago, I spoke with a Turkish waiter about his view of the sultan. His pride and respect for Mehmed stayed with me. It reminded me that history is never simple. Every figure we study has another side, another story, another set of loyalties and beliefs.

About the Author:

I’ve always been a writer, but it was only when illness forced me to stop everything that I finally had the time to write a novel. After decades of misdiagnosis, I learned I was born with a serious genetic condition, not rare, but profoundly misunderstood. The clues were there from birth, and suddenly, a lifetime of struggle made sense.

Writing became my lifeline: a way to step beyond my pain, to shape my experience into a story, and to find meaning where there had once been only endurance.

I have a lifelong love of children, Counselling, and Psychotherapy Theory and history.

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