Attribution Track

Evidence path for authorship claims, workshop participation, and disputed works. This track now carries first-pass dossier blocks with anchors, competing hypotheses, and route links.

Priority Attribution Dossiers

Work Family	Current Attribution Shape	Primary Anchors	Routes
Mona Lisa Family	Core portrait identity anchored; version relationship remains an active analysis area.	1503 portrait anchor dossier, 1503-1519 long-duration dossier, workshop-context comparison, technical imaging layers.	Louvre, Prado
Virgin of the Rocks Family	Multi-hand production environment with contractual and workshop implications.	1483 contract dossier, 1483-1508 divergence dossier, de Predis linkage, underdrawing/composition shifts.	Louvre, London, de Predis
Salvator Mundi	High-dispute attribution with restoration intensity central to interpretation.	1499-1510 contested-attribution dossier, conservation history, technical scans, stylistic comparison against secure corpus.	Work Page
Workshop-Linked Madonnas	Mixed authorship likely in several branches, requiring version-tree discipline.	Workshop hand signatures, copy families, provenance fragmentation.	Madonna Litta, Yarnwinder, Version Trees

Attribution Dossier: Mona Lisa / Gioconda Cluster

Track portrait identity, version sequence, and workshop parallelism without collapsing distinct evidence classes.

Anchor: 1503 documentation chain tied to Lisa del Giocondo profile.
Competing Layer: single-panel finalization vs long-duration multi-state model.
Open Question: timeline of completion phases vs circulation of variant states.

Attribution Dossier: Virgin of the Rocks Contract System

Use contract-era records plus technical findings to separate commission obligations from surviving panel histories.

Anchor: 1483 commission structure and collaborator network.
Competing Layer: division of hand between Leonardo and workshop contributors.
Open Question: exact production phases for each version.

Attribution Dossier: Salvator Mundi

Case study for handling restoration intensity and high-stakes public attribution narratives.

Anchor: technical imaging and conservation record.
Competing Layer: autograph extent vs workshop participation.
Open Question: confidence thresholds for definitive labeling on public pages.

Event-Anchor Shortcuts

1453 Constantinople and Intellectual Migration: macro-context for knowledge-flow framing in early Renaissance interpretation.
1469-1492 Medici Patronage System: patronage architecture context for Florence-era commission and network interpretation.
1473 Arno Landscape and Observational Turn: early dated anchor for baseline attribution confidence and observational-method continuity.
1472-1475 Baptism of Christ Collaboration Node: workshop-boundary anchor for multi-hand attribution controls in early painting routes.
1474-1478 Ginevra de' Benci Portrait Innovation Node: early portrait-attribution baseline for sitter identity and method confidence tiers.
1472-1478 Annunciation Devotional Innovation Node: early devotional painting anchor for workshop-transition and compositional confidence controls.
1475 Lily Study and Early Botanical Baseline: formative nature-study node for early-sheet confidence wording and sequence framing.
1475-1480 Madonna of the Carnation Early Devotional Node: early Madonna-family route anchor for workshop-transition and devotional composition confidence controls.
1478-1480 Benois Madonna Domestic Devotional Node: domestic devotional branch anchor for attribution-tier language and early portrait-devotional crossover claims.
Late 15th Century Court Engineer Demand: role-framework context for artist-engineer attribution narratives.
1478 Florentine Political Shock: political-pressure context for early Florence attribution and patronage framing.
1481 Adoration Commission and Unfinished Pivot: unfinished-state interpretation and process evidence anchor.
1482 Milan Entry and Court Positioning: route-shift context for Milan-era commission and workshop dynamics.
1483 Contract Cluster: collaboration and commission baseline.
1483-1508 Virgin of the Rocks Version Divergence Node: contract-to-delivery version-branch anchor for dual-panel claims and attribution controls.
1480s-1490s Saint Jerome Unfinished Devotional Anatomy Node: unfinished-state painting anchor for process evidence and long-window confidence language.
1485-1515 Anatomical Corpus Systems Integration: long-window anatomy corpus anchor for multi-sheet confidence and method-tier labeling.
1485-1490 Portrait of a Musician Milan Court Identity Node: Milan portrait node for sitter-identity uncertainty and portrait-sequence confidence control.
1489 Skull Studies and Anatomy Turn: anatomy-corpus anchor for drawing attribution confidence and methodological sequencing.
1489-1490 Lady with an Ermine Court Portrait Node: mature Milan portrait node for symbolism claims and portrait-sequence confidence control.
1490-1497 La Belle Ferronniere Court Portrait Attribution Node: long-window portrait node for identity-dispute and attribution-tier controls.
1480s-1510s Head of a Woman Study Series: portrait-series node for expression/form studies and broad-range date confidence handling.
1490s Last Supper Head Studies Expression Taxonomy: project-linked expression-series node for sheet mapping and mural-stage interpretation.
1490 Sforza Horse and Monumental Engineering Phase: monumental technical project context and non-completion logic.
1490 Madonna Litta Workshop Execution Node: Madonna-family control node for design-versus-execution attribution language.
1490 Vitruvian Man and Proportion Synthesis: proportion-claim and text-diagram method anchor for confidence-tier labeling.
1495-1498 Last Supper Execution Window: technique risk and conservation-aware attribution context.
1499 French Takeover of Milan: patronage disruption context for chronology and project continuity interpretations.
1499-1500 Isabella d'Este Portrait and Court Exchange: correspondence-rich portrait node for output-state and delivery-confidence analysis.
1499-1501 Madonna of the Yarnwinder Version Network Node: version-branch node for documentary anchors, technical comparison, and variant-confidence routing.
1499-1510 Salvator Mundi Contested Attribution Node: restoration-aware attribution node for high-visibility claims governance and evidence-tier separation.
1500-1508 La Scapigliata Medium-Boundary Node: compact medium-overlap node for unfinished-state interpretation and category-boundary wording.
1499-1508 Burlington House Cartoon Composition Laboratory: long-window preparatory node for composition lineage and workshop-stage interpretation.
1490s-1510s Saint Anne Composition Branch Network: sequence node linking studies, cartoon branch logic, and final-panel state claims.
1502 Borgia Field Engineering Phase: field-practice context for technical process and notebook-to-application continuity.
1503 Portrait Anchor: identity and chronology baseline.
1503-1519 Mona Lisa Long-Duration Completion Node: identity-certain, completion-variable route for version-family and chronology controls.
1504-1505 Battle Mural Competition: rivalry context for lost-work and comparative attribution claims.
1503-1506 Battle of Anghiari Study Fragment Network: fragment-witness route for reconstruction claims under uncertain direct evidence.
1505-1508 Botanical Observation Cluster: nature-study corpus node for study-sheet attribution and method continuity framing.
Late 15th-Early 16th Oak Leaf Botanical Structure Study: compact botanical node for morphology claims and material-language consistency.
1508-1513 Second Milan Phase and Scientific Synthesis: late-style and notebook-integration context for mature attribution analysis.
1508-1519 St John the Baptist Late Spiritual Portrait Node: late spiritual portrait node for iconographic-reading controls and end-phase attribution framing.
1480s-1519 Mechanical Codices Technical Program: corpus-scale technical node for feasibility language and domain-structured interpretation.
1510-1512 Fetus in the Womb and Anatomy Maturity: mature anatomy anchor for method-tier labeling and cross-sheet continuity.
1512-1513 Political Reconfiguration: late-route transition context before 1519 legacy transfer.
1512-1518 Red Chalk Self-Portrait Attribution Debate: late-era image-icon node for confidence-tier labels under disputed attribution conditions.
1513-1516 Rome Phase and Patronage Friction: constrained patronage context for late-work attribution framing.
1516-1519 France Final Court Phase: final active-phase bridge into transfer and custody interpretation.
1517 Horses and St George Late Equestrian Continuity: late horse-study continuity node for final-phase thematic and compositional attribution framing.
1519 Inheritance Transfer: legacy and manuscript continuity baseline.
1519 Onward Manuscript Custody and Dispersal: long-run provenance and corpus-fragmentation context.
16th Century Vasari Historiography Consolidation: reception-layer context for claim confidence grading.
17th Century and Later Optics and Technical Reception: indirect influence and technical afterlife context.

Linked People and Transmission Nodes

Francesco Melzi: manuscript transmission and late-work continuity context.
Salai: workshop proximity and estate-transfer relevance.
Giovanni Ambrogio de Predis: contract-linked collaborator node.
Raphael and Michelangelo: comparative reception and stylistic triangulation.

Open 1453 Dossier Open 1469-1492 Dossier Open 1473 Dossier Open 1472-1475 Baptism Dossier Open 1474-1478 Ginevra Dossier Open 1472-1478 Annunciation Dossier Open c.1475 Dossier Open 1475-1480 Carnation Dossier Open 1478-1480 Benois Dossier Open Late 15th c. Dossier Open 1478 Dossier Open 1481 Dossier Open 1482 Dossier Open 1483 Dossier Open 1483-1508 Virgin of the Rocks Dossier Open 1480s-1490s Saint Jerome Dossier Open 1485-1515 Dossier Open 1485-1490 Musician Dossier Open 1489 Dossier Open 1489-1490 Ermine Dossier Open 1490-1497 Ferronniere Dossier Open 1480s-1510s Head Series Dossier Open 1490s Last Supper Head Studies Dossier Open 1490 Dossier Open 1490 Madonna Litta Dossier Open c.1490 Vitruvian Dossier Open 1495-1498 Dossier Open 1499 Dossier Open 1499-1500 Dossier Open 1499-1501 Yarnwinder Dossier Open 1499-1510 Salvator Dossier Open 1500-1508 Scapigliata Dossier Open c.1499-1508 Dossier Open 1490s-1510s Saint Anne Branch Dossier Open 1502 Dossier Open 1503 Dossier Open 1503-1519 Mona Lisa Dossier Open 1504-1505 Dossier Open 1503-1506 Anghiari Studies Dossier Open c.1505-1508 Dossier Open Oak Leaf Botanical Dossier Open 1508-1513 Dossier Open 1508-1519 St John Dossier Open 1480s-1519 Technical Dossier Open 1510-1512 Dossier Open 1512-1513 Dossier Open c.1512-1518 Dossier Open 1513-1516 Dossier Open 1516-1519 Dossier Open 1517 Dossier Open 1519 Dossier Open 1519 Onward Dossier Open 16th c. Dossier Open 17th c. Dossier Open Version Trees Open Methodology