Monarchs And Nobility Codexery — Data & Quality

We publish our audit record because accuracy claims should be checkable. Every entry on this site runs through an automated fact-audit pipeline (accuracy audit → source-grounded repair → visual QA); this page is generated from that pipeline's own report, not written by hand.

Last full accuracy audit: 2026-08-30 · 10 entries checked · 4 flagged · 6 issues confirmed · 4 corrected · 2 still open

Recent findings (audit lane, verbatim)

Joanna of Castile — Joanna was the second surviving child, born after her sister Isabella and before her brother John, then Maria and Catherine. John was born in 1478, before Joanna (1479).

Joanna of Castile — Catherine of Aragon was not present at Windsor Castle during that visit; she was in England but not at court at that time, and the claim that she acted as hostess or intermediary is not supported by established historical accounts.

Johann II of Liechtenstein — The claim that Johann II's reign is the third-longest among sovereign monarchs with exact dates is incorrect; it is actually the second-longest.

Johann II of Liechtenstein — The statement that his mother acted as regent from 10 February 1859 to 12 November 1860 is incorrect; the regency actually lasted from 12 November 1858 to 12 November 1860.

Marie Antoinette — Marie Antoinette was not the youngest daughter; she had a younger sister, Archduchess Maria Antonia, who died in infancy.

Marie Louise, Duchess of Parma — Marie Louise was born on 12 December 1791, but her father Francis II was not yet Holy Roman Emperor at that time; he became Emperor in 1792. The entry's phrasing 'then still Archduke Francis of Austria, but already Holy Roman Emperor from 1792' is contradictor

Open data

All content is fetchable as JSON at /data/content/ · llms.txt · sitemap

Corrections

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