The Pillow Book of Sei Shōnagon — Lost Sections
by Sei Shōnagon

The Makura no Sōshi (Pillow Book) by Sei Shōnagon survives in four significantly different manuscript traditions, none of which is complete. Substantial passages present in one tradition are absent from others, indicating that portions of the original work — personal observations, court anecdotes, and the famous categorical lists — have been lost.
Confidence Map
Each section of this reconstruction is graded by the strength of its supporting evidence. Hover over a section to learn why.
General Description
mediumThe Makura no Sōshi (Pillow Book) by Sei Shōnagon survives in four significantly different manuscript traditions, none of which is complete. Substantial passages present in one tradition are absent fr...
Based on 4 cited source(s) and overall exhibit confidence of 40%.
Historical Context
highSei Shōnagon served as lady-in-waiting to Empress Teishi (Sadako) during the height of the Heian court's cultural brilliance, roughly 993–1000 AD. Her Pillow Book is a zuihitsu ("following the brush")...
Supported by multiple scholarly references.
Circumstances of Loss
mediumFragmented through centuries of manuscript copying, reordering, and editorial intervention; no authorial manuscript survives
Loss date is documented, lending credibility to the account.
The Story of Loss
Cause: Fragmented through centuries of manuscript copying, reordering, and editorial intervention; no authorial manuscript survives
Circumstances: The original manuscript likely circulated among court readers and was copied informally. Over four centuries, copyists rearranged, abridged, and interpolated material, producing the divergent traditions. No authorial manuscript survives from the Heian period for any literary work. The Pillow Book's losses are not due to a single event but to the accumulated effects of hand-copying over centuries, where each scribe made editorial choices that reshaped the text.
Date of loss: c. 11th–14th century AD
Historical Context
Sei Shōnagon served as lady-in-waiting to Empress Teishi (Sadako) during the height of the Heian court's cultural brilliance, roughly 993–1000 AD. Her Pillow Book is a zuihitsu ("following the brush") — a collection of lists, observations, character sketches, and diary-like passages that together form one of the most vivid portraits of court life ever written. The four major manuscript traditions (the Nōinbon, Sankanbon, Sakaibon, and Maedabon) differ markedly in both content and arrangement. The Sankanbon contains approximately 185 sections in what is thought to be closest to chronological order. The Nōinbon arranges material by type (lists together, diary entries together) and includes passages absent from the Sankanbon. Ivan Morris's classic 1967 English translation drew primarily on the Nōinbon tradition, while Meredith McKinney's 2006 translation follows the Sankanbon. No scholar believes any single tradition preserves Shōnagon's original text in full. Passages referenced in other Heian works but absent from all surviving manuscripts suggest additional material has been lost entirely. The Pillow Book's fragmentary state means that our picture of Heian court life — already largely dependent on women writers (Shōnagon and Murasaki Shikibu) — is built on an incomplete foundation.
Reconstruction Methodology
This exhibit's reconstruction was generated using AI analysis of historical records, scholarly references, and contextual evidence from the c. 1002 period. Each section of the reconstruction is tagged with a confidence level reflecting the strength of the underlying evidence.
Vestige reconstructions are scholarly tools, not definitive claims. They represent our best understanding given available evidence and are always presented with transparent methodology.
Cited Sources
- 1
The Pillow Book of Sei Shōnagon (Penguin Classics)
Meredith McKinney (translator) (2006)
- 2
The Pillow Book
Ivan Morris (translator) (1967)
- 3
Traditional Japanese Literature: An Anthology, Beginnings to 1600
Haruo Shirane (2007)
- 4
Makura no Sōshi Kenkyū
Tanaka Jūtarō (1971)