Fulco (bishop of Estonia)
missionary Bishop of Estonia (died 1180)

Fulco was the first known missionary Bishop of Estonia. He was appointed in 1165 by Eskil, the Danish Archbishop of Lund. Before his appointment, Fulco was a Benedictine monk in the abbey of Moutier-la-Celle, near Troyes in France. His nationality is not known.
After his appointment, Fulco appears in sources only once. In 1171, Pope Alexander III asked the Archbishop of Trondheim to assign an Estonian monk Nicolaus living in Stavanger to go to Fulco's assistance. No further information survives about Fulco's work in Estonia, or whether he ever even got there.
Identification with Folquinus
Fulco is sometimes speculated to be the same person as a certain Folquinus, a late 12th century Bishop of Finland, briefly mentioned in a mid-15th century chronicle Chronicon episcoporum Finlandensium after equally legendary Rodulff and before quite historical Thomas. The chronicle claimed him to be Swedish by birth. Folquinus was again mentioned in another chronicle of the same name by Paulus Juusten, the Bishop of Turku, about 100 years later, adding that during a Russian attack to Finland in 1198 he was still in office.
This brief starts where responsible research should: with the source description of “Fulco (bishop of Estonia)” as missionary Bishop of Estonia (died 1180). Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as missionary Bishop of Estonia (died 1180). Its deeper value depends on whether names, dates, institutions and citations support that framing.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Apr 6, 2025. The linked authority identifier is Q3090728. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1165, 1171 and 1198.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Fulco (bishop of Estonia)” 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.