Gallus Anonymus
12th-century chronicler of Polish history

Gallus Anonymus (Polish: Gall Anonim, Anonim, tak zwany Gall), is the name traditionally given to the anonymous author of Gesta principum Polonorum (Deeds of the Princes of the Poles), composed in Latin between 1112 and 1118.
Gallus is generally regarded as the first historian to have described the history of Poland. His Chronicles are an obligatory text for university courses in Polish history. Very little is known of the author himself and it is widely believed that he was a foreigner.
Kromer
The only source for Gallus' real name is a note made by Prince-Bishop of Warmia Marcin Kromer (1512–89) in the margin of folio 119 of the "Heilsberg manuscript." It reads: Gallus hanc historiam scripsit, monachus, opinor, aliquis, ut ex proemiis coniicere licet qui Boleslai tertii tempore vixit (Gallus wrote this history, some monk, in my opinion, who lived in the time of Boleslaus III Wrymouth, as can be conjectured from the preface.') It is not known whether Kromer intended the word "Gallus" as a proper name or as a reference to the author's nationality (Gallus in this period normally means "a Frenchman"), nor what he based his identification on.
The Heilsberg manuscript, one of three extant witnesses of the Gesta, was written between 1469 and 1471. From the mid-16th to 18th centuries, it was kept in the town of Heilsberg (today Lidzbark Warmiński, Poland). It was later published at the behest of Prince-Bishop of Warmia Adam Stanisław Grabowski (1698–1766).
Origin
The author of the Gesta wrote little about himself and was not written about in contemporary sources. What Gallus did write about himself may be summed up as follows: Before going to Poland, he likely spent some time in Hungary, where he met Polish duke Boleslaus III Wrymouth; he was a pilgrim; he revered Saint Giles; and he knew little about Scandinavia.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Oct 17, 2025. The linked authority identifier is Q511158. VIAF identifies the subject as 13100620. The Library of Congress control number is n87146215. 2 of 3 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1112, 1118, 1512 and 1469.
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This entry incorporates text from “Gallus Anonymus” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.