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Crusaders and Kings of Jerusalem: The Beaumonts

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Traces the remarkable international history of the Brienne/Beaumont family, spanning from the Crusader states to Europe and the Eastern Mediterranean.

The Brienne/Beaumonts, a noble family originally from Champagne, spread across Europe and the Eastern Mediterranean in the Middle Ages. Their story begins with John de Brienne (c. 1175/78-1237), who was the emperor of Constantinople, became king of Jerusalem by marriage, and claimed the throne of a kingdom in modern-day Turkey called Armenian Cilicia. His life, his children and his grandchildren’s lives were remarkably international. 

His daughters were born in Italy and what is now Lebanon; one of his sons, who grew up in Constantinople, France and Spain, was the stepfather of the king of Scotland; one of his grandchildren was the king of Germany, Italy and Sicily; and several other grandchildren settled in England, where one married a Scottish heiress and was the great-grandfather of a king of England and an English-born queen of Portugal. 

The Beaumonts tells the story of the places where the Brienne/Beaumont family settled and held influence between the twelfth and fourteenth centuries. It begins in the Crusader states and moves to the Latin Empire of Constantinople, the Holy Roman Empire, Spain, France, Scotland, and England.

279 pages, Kindle Edition

Published March 31, 2025

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About the author

Kathryn Warner

21 books182 followers
I grew up in the north of England, and hold two degrees in medieval history and literature from the University of Manchester. I have run a blog about King Edward II (reigned 1307 to 1327) since 2005, have had work published about him in the prestigious academic journal the English Historical Review (founded 1886) and in the academic essay collection Fourteenth-Century England, and have appeared talking about him in the BBC documentary Quest for Bannockburn. I also appeared in a documentary about Edward II shown on the German-French TV channel Arte in late 2019, and have given a paper about him at the International Medieval Congress at the University of Leeds.

My first book, titled Edward II: The Unconventional King, was released in October 2014, and my biography of Edward II's queen Isabella of France (c. 1295-1358) was published in March 2016. My third book is an account of Edward's murder in 1327 or survival past that year, which came out in June 2017, and my fourth is a bio of Edward II's great-grandson Richard II, published October 2017. My fifth book, Blood Roses, came out in October 2018, and is an account of the royal houses of Lancaster and York from 1245 to 1399. My sixth was also published in October 2018 and is a biography of Edward II's malevolent favourite Hugh Despenser the Younger. My next two books came out in 2019: a travel guide to places in the UK associated with Edward II, called Following in the Footsteps of Edward II, and a biography of Edward III's queen Philippa of Hainault. A joint bio of Edward II's nieces Eleanor, Margaret and Elizabeth de Clare came out in February 2020, and a work of social history called Living in Medieval England: The Turbulent Year of 1326 was also published that year, A book about the Despenser family from 1261 to 1439 will come next, and a bio of Edward III's son/Henry IV's father John of Gaunt, second duke of Lancaster, is due out in 2021.

Projects I'm working on are: a joint bio of Edward II's five sisters; a joint bio of Edward III's granddaughters; a social history of London between 1300 and 1350; and a book about the medieval Beaumont family. And I'm sure there'll be plenty more after that!

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Profile Image for Joan.
45 reviews9 followers
October 24, 2025
This book reminds me of the Bible. It's a continuous repetition of a character who marries a princess who is related to such-and-such. Or their great-grand-children intermarry. With hardly more than a few lines about any character. It's mainly about inter-relations.
John of Beaumont and his children are just the wires that keep them all related, but they are hardly mentioned in the book.
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