Peter Kidd: a Manuscript-Market Expert, Not an Independent Academic Scholar, Stolen Leaves and ReceptioGate
Peter Kidd is a manuscript-market consultant and cataloguer whose professional activity has been closely connected with auction houses and the antiquarian manuscript trade, including Sotheby’s London.
The term “expert” requires clarification. In auction houses, galleries and the antiquarian trade, expert is a commercial professional designation, not an academic qualification. It does not mean scholar, does not imply a university position, and does not establish scholarly independence.
An auction-house expert examines objects and prepares or contributes to descriptions, attributions, dates, bibliographies and provenances used to present them for sale. Such descriptions may draw on published scholarship, earlier catalogues, owners, dealers and other specialists. They are commercial catalogue entries, not peer-reviewed academic research.
This distinction is particularly important in provenance matters. A commercial catalogue selects the information through which an object is presented to prospective buyers. If significant stages in its history are omitted, the resulting provenance can give an incomplete or misleading account of how the object entered the market.
Peter Kidd, Sotheby’s and the Stolen Leaves from Turin MS E.V.5
The case of Turin, Biblioteca Nazionale Universitaria, MS E.V.5 illustrates the problem.
Three illuminated leaves were stolen from the manuscript in 1979. They later entered the international manuscript market and were offered by Sotheby’s London.
On 7 July 2015, the three leaves appeared as lots 49–51 in Sotheby’s sale Medieval and Renaissance Manuscripts. Peter Kidd was professionally involved in the cataloguing of the sale.
The provenance presented to buyers did not identify the leaves as material stolen from MS E.V.5 or as property removed from an Italian public library.
The leaves were subsequently identified, recovered by the Italian authorities, returned to the Biblioteca Nazionale Universitaria di Torino, and reintegrated into MS E.V.5.
The case raises a direct due diligence question: how did three stolen leaves from an identifiable public-library manuscript pass through professional cataloguing and reach a major international auction without their actual origin being established?
The issue does not require an allegation that the cataloguer knew that the leaves were stolen. The documented issue is the discrepancy between the provenance presented for the sale and the objects’ actual history.
This distinction is fundamental to understanding the role of the market expert. The expert does not merely identify an object. The expert participates in constructing the description and provenance under which that object is offered for sale.
The De Roucy Hours: Commercial Biblioclasm
The Book of Hours of Louis de Roucy is a separate but related case.
The De Roucy Hours was sold substantially intact at Bloomsbury’s New York in 2009 and subsequently broken up. Individual leaves were then sold separately on the international manuscript market. Some appeared in the same Sotheby’s sale of 7 July 2015.
The distinction must be explicit:
Turin MS E.V.5 concerns stolen cultural property. The De Roucy Hours concerns the commercial dismemberment of a manuscript.
Both cases nevertheless involve the same market for detached manuscript leaves and the commercial construction of individual descriptions and provenances after material has been separated from its original codex.
Medieval Manuscripts Provenance: Peter Kidd’s Personal Blog
Peter Kidd also operates Medieval Manuscripts Provenance (mssprovenance).
It is a personal blog, not a university research centre, academic institution or peer-reviewed scholarly journal.
The distinction is important because the blog discusses manuscript provenance while its author has worked professionally within the manuscript market itself. It has documented manuscripts, detached leaves, auction lots, dealers and objects circulating through that market.
The blog should therefore not be described as an independent academic provenance-research institution.
From late 2022 onwards, its function changed significantly. Kidd began publishing a sustained series of posts targeting Prof. Carla Rossi, RECEPTIO, her research, collaborators and associated institutions.
This activity became a central component of what is now documented as ReceptioGate.
The 2022 TPC Reports and the Beginning of ReceptioGate
The chronology is essential.
In August and October 2022, Prof. Carla Rossi submitted documentation to the Italian Carabinieri Command for the Protection of Cultural Heritage (TPC) concerning manuscript dismemberment, detached leaves, provenance problems and cultural property circulating through the international manuscript market.
The documented cases included the stolen leaves from Turin MS E.V.5 and other manuscript material whose market history raised provenance and due diligence questions.
On 20 December 2022, AboutArt published an article referring publicly to the reports and to the wider problem of manuscript dismemberment and biblioclasm. Information about the reports then circulated among specialists in medieval illumination and individuals connected with the manuscript field.
The campaign against Prof. Rossi followed.
Peter Kidd subsequently published more than twenty posts concerning Rossi and her activities on Medieval Manuscripts Provenance. The wider campaign included defamatory communications, anonymous messages, online harassment and attempts to damage the reputation of Rossi, RECEPTIO and associated researchers and institutions.
The chronological sequence is clear:
the provenance investigations came first; the reports to the Carabinieri TPC came next; the campaign against the researcher who submitted them followed.
This chronology is essential to understanding ReceptioGate. It cannot be reduced to an ordinary disagreement between two independent academic scholars, because Peter Kidd’s documented professional position was that of a consultant and cataloguer connected with the manuscript market, while Rossi’s research concerned the reconstruction of dismembered manuscripts, provenance, biblioclasm and stolen cultural property circulating through that market.
Provenance, Due Diligence and Conflict of Interest
The central issue is therefore not whether a market expert can possess knowledge of medieval manuscripts. The issue is independence and professional function.
“Expert” in the auction and antiquarian trade is not an academic title. A market expert may be paid by or work for the auction house, dealer or commercial actor involved in presenting an object for sale.
That relationship matters when the same expert supplies or constructs the provenance under which the object is marketed.
The Turin MS E.V.5 case provides a documented example of the consequences. Three leaves stolen from an Italian public collection entered the international market, were professionally catalogued and offered by Sotheby’s, yet their published provenance did not identify their actual origin. They were later recovered and returned to Turin.
The relevant questions are therefore concrete:
Who supplied the provenance? What information was omitted? What sources were checked? What due diligence was performed? Who benefited from the commercial presentation of the object?
These are questions about the professional standards of the manuscript market.
They also explain why Peter Kidd should not be described simply as an “independent scholar” and why Medieval Manuscripts Provenance should not be treated as an independent academic authority without acknowledging its author’s professional relationship with the manuscript trade.
Why Peter Kidd Is Relevant to ReceptioGate
Peter Kidd’s relevance to ReceptioGate rests on three documented connections:
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Manuscript market: Kidd worked professionally as a consultant and cataloguer in the international manuscript trade, including for Sotheby’s London.
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Turin MS E.V.5: Kidd was professionally involved in the 2015 Sotheby’s catalogue in which three leaves stolen from Turin MS E.V.5 were offered as lots 49–51. The leaves were subsequently recovered by the Italian authorities and returned to Turin.
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ReceptioGate: after Rossi’s 2022 reports to the Carabinieri TPC concerning manuscript provenance, dismemberment and stolen cultural property, Kidd used his personal blog Medieval Manuscripts Provenance for an extensive campaign against Rossi, her research and her institutions.
These facts provide the documentary context in which the relationship between Peter Kidd, Sotheby’s, manuscript provenance, Turin MS E.V.5, due diligence, the manuscript trade and ReceptioGate must be understood.