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: 2026-09-03 · 5 entries checked · 3 flagged · 5 issues confirmed · 3 corrected · 2 still open
Duchy of Brittany — The Duchy of Brittany was never a part of the Holy Roman Empire, so presenting it in a series about 'Duchies and Electorates of the Holy Roman Empire' is a factual misattribution.
Duchy of Brittany — Henry II of England's brother Geoffrey did not marry Constance of Brittany; it was Henry II's son Geoffrey who married Constance.
Duchy of Burgundy — The duchy as a distinct feudal entity is traditionally considered to have been created in 1032, not 898; the 898 date refers to the first duke's title, not the formal establishment of the hereditary fief.
Duchy of Savoy — The entry states the Duchy of Savoy existed until 1720 when it was merged into the Kingdom of Sardinia, but the duchy continued to exist as a constituent part of the Kingdom of Sardinia until 1861, not as a separate entity that ceased to exist in 1720.
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