Skip to content
We independently pick everything we recommend. When you buy through our links, we may earn a commission. Learn more ›

Answers to "what should I read?" for every reader

History and Biography

Best Biographies of Kings (2026): 5 Top Reads

Five biographies of kings compared by author, depth and era, from Charlemagne to Charles III, plus one Stephen King companion.

Best Biographies of Kings (2026): 5 Top Reads

At a glance

Top picks

As an Amazon Associate I earn from qualifying purchases.

How we score

Finding the best biographies of kings starts with deciding which kind of king you want: the medieval warlord, the colonial tyrant, or the modern monarch on the throne today. We compared five books by listed author, print length, publisher and edition, using only what each listing states, so you can match the book to the reader in front of you.

ShelfAnswers earns a commission when you buy through links on this page, at no extra cost to you. As an Amazon Associate I earn from qualifying purchases. Affiliate disclosure.

Quick picks

  • George III: Last King
    Best Overall George III: Last King: Andrew Roberts on George III, 784 pages, acclaimed historian Check price on Amazon
  • King and Emperor: Charlemagne
    Best Medieval King and Emperor: Charlemagne: Janet Nelson on Charlemagne, 704 pages, praised as detective history Check price on Amazon
  • King Leopold's Ghost
    Best Colonial Story King Leopold’s Ghost: Hochschild on Leopold II, 416 pages, 25th anniversary edition Check price on Amazon
  • The King: Life of Charles III
    Best Modern King The King: Life of Charles III: Christopher Andersen on Charles III, 480 pages, first biography Check price on Amazon
  • Stephen King Companion
    Best Companion Stephen King Companion: Stephen King illustrated companion, 240 pages, rare photos Check price on Amazon

The picks

George III: Last King

George III: Last King

Andrew Roberts9.8/10 Shelf Score
i
The Shelf Score runs from 9.2 to 9.8 and weighs fit for the reader or goal (35 points), contents and edition (25), value (25) and listed reading age or level (10, where the listing gives one), using only what the book listing states. How we pick ›

Andrew Roberts's 784-page biography of George III, written from never-before-published correspondence; suits readers who want the deep reassessment.

Pros

  • Acclaimed historian working from new correspondence
  • 784 pages, the deepest book here
  • Reassesses the last king of America
  • Penguin Books, 2023

Cons

  • 784 pages is a long commitment
  • Revises a familiar story, not new ground for experts
  • Single-author view of a contested reign
  • No stated edition extras
King and Emperor: Charlemagne

King and Emperor: Charlemagne

Janet L. Nelson9.7/10 Shelf Score
i
The Shelf Score runs from 9.2 to 9.8 and weighs fit for the reader or goal (35 points), contents and edition (25), value (25) and listed reading age or level (10, where the listing gives one), using only what the book listing states. How we pick ›

Janet L. Nelson's 704-page life of Charlemagne, praised as detective-like history; suits readers who want the medieval warlord in full.

Pros

  • Janet Nelson, a leading scholar of the period
  • 704 pages of depth
  • Praised as detective-like history by the Wall Street Journal
  • First edition, University of California Press

Cons

  • 704 pages is a long commitment
  • Dense academic approach, not light reading
  • First edition from 2019, not a recent update
  • Single-author view of a vast subject
King Leopold's Ghost

King Leopold's Ghost

Adam Hochschild9.7/10 Shelf Score
i
The Shelf Score runs from 9.2 to 9.8 and weighs fit for the reader or goal (35 points), contents and edition (25), value (25) and listed reading age or level (10, where the listing gives one), using only what the book listing states. How we pick ›

Adam Hochschild's 416-page account of Leopold II of Belgium and the Congo; suits readers who want the colonial story that reads like a novel.

Pros

  • Hochschild, a National Book Critics Circle finalist
  • 416 pages, finishes fastest here
  • Described as history that reads like a novel
  • 25th Anniversary Edition, Mariner Books Classics

Cons

  • Dark subject matter throughout
  • Covers a brutal colonial chapter, not a light read
  • 416 pages but dense narrative
  • 25th anniversary edition, not new research
The King: Life of Charles III

The King: Life of Charles III

Christopher Andersen9.7/10 Shelf Score
i
The Shelf Score runs from 9.2 to 9.8 and weighs fit for the reader or goal (35 points), contents and edition (25), value (25) and listed reading age or level (10, where the listing gives one), using only what the book listing states. How we pick ›

Christopher Andersen's 480-page life of Charles III, the first biography since he took the throne; suits readers who want the current monarch.

Pros

  • First biography of Charles since he became monarch
  • 480 pages of modern royal life
  • Author Christopher Andersen
  • Gallery Books, 2022 first edition

Cons

  • Popular biography, not academic depth
  • Covers a still-unfolding reign
  • 480 pages, mid-length only
  • Single-author view of a contested figure
Stephen King Companion

Stephen King Companion

Bev Vincent9.5/10 Shelf Score
i
The Shelf Score runs from 9.2 to 9.8 and weighs fit for the reader or goal (35 points), contents and edition (25), value (25) and listed reading age or level (10, where the listing gives one), using only what the book listing states. How we pick ›

Bev Vincent's 240-page illustrated companion to the horror author Stephen King; suits readers who want the production value, not royalty.

Pros

  • Rare photos from King's own collection
  • 240 pages of illustrated material
  • Covers his work through Fairy Tale
  • becker&mayer! books, 2022

Cons

  • Not a biography of a monarch
  • 240 pages, the shortest here
  • Illustrated companion, not narrative history
  • Single-author view of a living writer

As an Amazon Associate I earn from qualifying purchases.

More picks to compare

  • The White Horse King: Alfred the GreatThe White Horse King: Alfred the GreatFor Alfred the Great, the unlikely king who rallied England against the Vikings.Check on Amazon
  • Alexander: God, King, ManAlexander: God, King, ManFor Alexander the Great, a fresh retelling drawing on new discoveries.Check on Amazon
  • King David: A BiographyKing David: A BiographyFor King David, a close critical reading of the biblical texts.Check on Amazon
  • Martin Luther King, Jr.: A LifeMartin Luther King, Jr.: A LifeFor a quick introduction to Martin Luther King Jr.'s life and legacy.Check on Amazon
  • Young King: The Making of Martin Luther King Jr.Young King: The Making of Martin Luther King Jr.For the early life of Martin Luther King Jr., from a King scholar.Check on Amazon

Compare the picks

Book Shelf Score Author Pages Era Amazon
George III: Last King 9.8/10 Andrew Roberts 784 George III View on Amazon
King and Emperor: Charlemagne 9.7/10 Janet L. Nelson 704 Charlemagne View on Amazon
King Leopold’s Ghost 9.7/10 Adam Hochschild 416 Leopold II
The King: Life of Charles III 9.7/10 Christopher Andersen 480 Charles III View on Amazon
Stephen King Companion 9.5/10 Bev Vincent 240 Not a monarch View on Amazon

Book details as published on each listing, collected 20 October 2026.

How we scored them

The Shelf Score weighs depth of the narrative, the author’s standing, value of the edition, and listed print length. None of the five listings states a warranty term or a safety certification, which is normal for books. How we pick explains the weights.

Book Shelf Score Fit /35 Contents /25 Value /25 Age/level /10
George III: Last King 9.8 33 22 20 n/a
King and Emperor: Charlemagne 9.7 32 21 20 n/a
King Leopold’s Ghost 9.7 32 20 20 n/a
The King: Life of Charles III 9.7 30 20 20 n/a
Stephen King Companion 9.5 26 19 19 n/a

Scores run from 9.2 to 9.8: each book’s point total is placed on that range, so more points always means a higher score. Reading age or level counts on a list where at least one listing gives one, and a book whose listing gives none then scores zero on it. Where no listing gives one, the score is taken over the other 85 points. Books carry no warranty, so warranty is not scored.

How to choose the best biographies of kings

Match the era to the reader

The eras run from the ninth century to the present. King and Emperor covers Charlemagne at 704 pages, King Leopold’s Ghost covers Leopold II of Belgium at 416 pages, The Last King of America covers George III at 784 pages, and The King covers Charles III at 480 pages. For a reader new to the genre, the shorter Leopold book finishes fastest; the George III book is the deep dive. For other history lives, see our biographies of Napoleon.

Check who wrote it

The authors are the draw here. Andrew Roberts is described as an acclaimed historian who worked through never-before-published correspondence for the George III book. Janet Nelson’s Charlemagne book is praised by the Wall Street Journal as detective-like history. Christopher Andersen is a widely read author, and his Charles III book is the first biography since the king took the throne. For more lives of leaders, see our biographies of Leonardo da Vinci.

Note the one that is not a king

The Stephen King Companion is a 240-page illustrated companion to the horror author, not a biography of a monarch. It earns its spot on production value: rare photos and documents from King’s own collection, covering his work through Fairy Tale. If you came for actual royalty, skip it and start with Charlemagne or Leopold. For more statesman lives, see our biographies of Kissinger.

Frequently Asked Questions

Which is the longest book here?

The Last King of America at 784 pages. King and Emperor follows at 704 pages.

Which book is about Charles III?

The King: The Life of Charles III by Christopher Andersen, 480 pages, described as the first biography of Charles since he became monarch.

Which covers colonial Africa?

King Leopold’s Ghost by Adam Hochschild, 416 pages, about Leopold II of Belgium and the Congo.

Is the Stephen King book a biography of a king?

No. It is an illustrated companion to the horror author Stephen King, with photos and documents from his collection. It is included here for its production value, not for royalty.

Do any list a warranty?

No. None of the listings states a warranty term, which is normal for books.

George III: Last King
Still deciding? Our top pickGeorge III: Last King
Check price on Amazon

See every history and biography list and all nonfiction lists. Also see our biographies of Napoleon. Also see our biographies of Kissinger.

More picks: browse history and biography, nonfiction and biographies of Leonardo da Vinci.

Readers also asked

  1. What is the best Biography of Ian Fleming?

    Four books for readers curious about Ian Fleming, compared by fit, page count, publication date and edition, with five more options listed.

  2. What are the best Biographies of James Madison?

    Five James Madison biographies are compared here on author standing, format and focus, with every single figure taken from the listings.

  3. What are the best Biographies of John Quincy Adams?

    Five biographies of John Quincy Adams compared on focus, author standing and format, with every book detail taken from the listings.

  4. What are the best Biographies of John Adams?

    Four biographies of John Adams compared on focus, publisher, page count and publication year, with every detail taken as published in each book listing.