Jacob Cornelisz van Oostsanen
Dutch painter and designer of woodcuts (before 1470-1533)
Jacob Cornelisz van Oostsanen (before 1470 – 1533) was a Northern Netherlandish designer of woodcuts and painter. He was one of the first important artists working in Amsterdam, at a time when it was a flourishing and beautiful provincial town.
Biography
Little is known about Jacob Cornelisz van Oostsanen's life. Historians rely mostly on the biographical sketch of him written by Karel van Mander, the archives of Amsterdam, and the archives of Egmond Abbey, a Benedictine monastery that commissioned works by him. His name indicates he was from Oostzaan, North Holland, east of the river Zaan, northwest of Amsterdam. His family managed land in that area. His entire family were painters. Cornelis Buys I, also known as Master of Alkmaar, was his brother, as was Cornelis Buys II. His sons Cornelis Jacobz and Dirk Jacobsz became portrait painters, as did his grandsons Cornelis Anthonisz and Jacob Dirksz.
As birth or baptism dates have been lost, all of their birth dates have been approximated from other archival evidence such as death dates of other family members. Similar to the archival evidence surrounding Frans Hals, the first known commissions for Jacob Cornelisz were from when he was at least 35 years of age.
“Jacob Cornelisz van Oostsanen” enters the record as dutch painter and designer of woodcuts (before 1470-1533). Crown Archives preserves that source wording while asking what Jacob, Cornelisz and Oostsanen can confirm, complicate or overturn.
Why this record matters
“Jacob Cornelisz van Oostsanen” is worth following because a concise public description often conceals a longer documentary argument. Here, Jacob, Cornelisz and Oostsanen provides the most credible route into that argument.
Chronology provides the most reliable spine for this subject; interpretation should follow only after identities and dates are secure. The source revision retrieved here is dated May 12, 2026. The linked authority identifier is Q1029143. VIAF identifies the subject as 22939175. The Library of Congress control number is nr97016130. 3 of 4 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1470 and 1533.
Later biographies can compress uncertainty and repeat inherited reputations, so apparently settled claims may still require comparison. 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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Three-step research path
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Questions for further research
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This entry incorporates text from “Jacob Cornelisz van Oostsanen” 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.