From A Drug-Fueled Car Cash To A ‘Surfeit Of Lampreys,’ These Are The Strangest And Most Gruesome Royal Deaths In History

Published November 15, 2022
Updated November 16, 2022

King Henry I, The Monarch Who Died From A ‘Surfeit Of Lampreys’

King Henry I

Hulton Archive/Getty ImagesKing Henry I’s fondness for lampreys ultimately killed him.

King Henry I was no stranger to royal deaths. The youngest son of William the Conqueror, he certainly knew the explosive details of his father’s funeral. But Henry, too, would meet a strange fate. And it had to do with fish.

After outliving one brother and outmaneuvering another, Henry took the English throne in 1100. As king, he dedicated his time to revamping the royal justice system, building a grand abbey in Reading, and indulging his love of lampreys, a boneless fish historically favored by England’s royals.

There was just one problem. Every time that Henry ate lampreys, he felt sick.

Lamprey

Bettmann/Getty ImagesA lamprey held for display. The fish is allegedly a favorite among English royals.

According to medieval historian Marc Morris, doctors had warned Henry about eating lampreys before. But the king had waved away their worries. And after hunting in Normandy in 1135, he called for his favorite meal.

Medieval chronicler Henry of Huntingdon described the aftermath, writing, “[T]his meal brought on a most destructive humour, and violently stimulated similar symptoms, producing a deadly chill in his aged body, and a sudden and extreme convulsion. Against this, nature reacted by stirring up an acute fever to dissolve the inflammation with very heavy sweating.”

Soon afterward, King Henry I died. Doctors apparently ascribed his royal death to “a surfeit of lampreys.”

author
Kaleena Fraga
author
A staff writer for All That's Interesting, Kaleena Fraga has also had her work featured in The Washington Post and Gastro Obscura, and she published a book on the Seattle food scene for the Eat Like A Local series. She graduated from Oberlin College, where she earned a dual degree in American History and French.
editor
Jaclyn Anglis
editor
Jaclyn is the senior managing editor at All That's Interesting. She holds a Master's degree in journalism from the City University of New York and a Bachelor's degree in English writing and history (double major) from DePauw University. She is interested in American history, true crime, modern history, pop culture, and science.
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Fraga, Kaleena. "From A Drug-Fueled Car Cash To A ‘Surfeit Of Lampreys,’ These Are The Strangest And Most Gruesome Royal Deaths In History." AllThatsInteresting.com, November 15, 2022, https://allthatsinteresting.com/weird-royal-deaths. Accessed February 12, 2025.