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Cover of Ines. The title is silver sparkling letters set against purple flowers with a crown above.


The first in a trilogy, INÊS explores why a love story became a tragedy. Eternal gratitude turns a blind eye to a jealous man's anger. Grief begets revenge. 
Library Journal Historical Fiction Pick July 2025 - June 2026
Chanticleer 1st Place in Chaucer Category
Five Star Review from Readers Favorite

  EXPLORE  PORTUGAL

https://www.visitportugal.com/en


The people of Portugal are friendly and engaging. Charming towns, festivals, amazing food and wine, and great places to stay including pousadas, manors and castles. Some highlights of my visits to towns in the novel are found in the Tidbits tab.  

Histria Books and Catherine Mathis have entered into a 3-book publishing

agreement for the The Queens of Portugal Trilogy!

Check out Histria Books


A banner of 3 repeating identical squares. Each square is of three medieval figures inset in a red and blue heraldic border.

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Publishing 27 Oct 2026:

Leonor



Is Leonor the "Lucrezia Borgia" of Portugal or a woman maligned to suit the narrative of the Avis dynasty?  Read her tale and make up your own mind about her role in Portugal's history.

Coming in the Fall of 2028:

Philippa


The final installment of the Queens of Portugal trilogy relates the life of Philippa of Lancaster, daughter of John of Gaunt. She will wed one of Portugal's great kings and raise successful children, including Prince Henry the Navigator whose historical role is now dimmed.

Book cover for Lenor with a deep red background, the title in silver sparkling letters beneath an iron crown. The page is edged with white flowers from a poisonous bush.
Book cover for Philippa. The background is dark green, the title is silver letters that sparkle edged by the red rose of the House of Lancaster and a crown above her name.

Photos on this page were taken by Catherine Mathis. Book covers were designed in-house by Histria Books, LLC.The mid-page border image was generated using Canva AI tools by Catherine Mathis (June 2024).