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Oathbreakers: The War of Brothers That Shattered an Empire and Made Medieval Europe book cover by Matthew Gabriele, David M. Perry
Paperback

Oathbreakers: The War of Brothers That Shattered an Empire and Made Medieval Europe

by Matthew Gabriele and David M. Perry

$11.20 / copy at 25+ copies As low as $9.31 at 1,000+Your best volume price

Paperback · 304 pages HarperCollins · 2025

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About the book

Oathbreakers

“Fascinating.” — The Wall Street Journal

“An enlightening portrait of the medieval mindset.” — Publishers Weekly

The authors of The Bright Ages return with a “real-life Game of Thrones” (New York Times Book Review)—the story of the Carolingian Civil War, a bloody, protracted battle pitting brother against brother, father against son, that would end an empire, upend a continent, and redefine the future of Europe 

By the early ninth century, the Carolingian empire was at the height of its power. The Franks, led by Charlemagne, had built the largest European domain since Rome in its heyday. Though they jockeyed for power, prestige, and profit, the Frankish elites enjoyed political and cultural consensus. But just two generations later, their world was in shambles. Civil war, once an unthinkable threat, had erupted after Louis the Pious’s sons tried to overthrow him—and then placed their knives at the other’s neck. Families who had once charged into battle together now drew each other’s blood.

The Carolingian Civil War would rage for years as kings fought kings, brother faced off against brother, and sons challenged fathers. Oathbreakers is the dramatic history of this brutal, turbulent time. Medieval historians David M. Perry and Matthew Gabriele illuminate what happens when a once unshakeable political and cultural order breaks down and long suppressed tensions flare into deadly violence. Drawn from rich primary sources, featuring a wide cast of characters, packed with dramatic twists and turns, this is history that rivals the greatest fictional epics—with consequences that continue to shape our own world.

Oathbreakers offers lessons of what deep cracks in a once-stable social and political fabric might reveal, and the bloody consequences of disagreeing on facts and reality. The Civil War at the heart of this tale asks: who is “in” and who is “out”? And what happens when things fall apart?

 



The book, Oathbreakers: The War of Brothers That Shattered an Empire and Made Medieval Europe [Bulk, Wholesale, Quantity] ISBN#9780063336711 in Paperback by Matthew Gabriele, David M. Perry may be ordered in bulk quantities. Minimum starts at 25 copies. Availability based on publisher status and quantity being ordered.

Details

Publisher
HarperCollins
Authors
Matthew Gabriele, David M. Perry
Format
Paperback
Published
Dec 9, 2025
ISBN-13
9780063336711
ISBN-10
0063336715
Pages
304
Carton quantity
64 copies
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CopiesPrice per copyYou save
25 – 99 $11.20 41% off list
100 – 249 $10.63 44% off list
250 – 499 $10.06 47% off list
500 – 999 $9.68 49% off list
1,000+ $9.31 51% off list
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