The Project’s Four Headline Discoveries (according to Philippa Langley's website):
'Discovery 1: Forensic investigation of all records dating to the reign of Richard III revealed no evidence of the death of Edward V or Richard, Duke of York. Both individuals are referenced as alive in all existing day-to-day accounting and legal records.'
This means nothing, and was a very common kind of deception/practice (usually done in order to buy time for vested parties); for example, Henry VII's death was not announced even to extremely high-ranking nobles for days, simply because of ministers', relations' and advisers' fears that those nobles would attempt a coup or a Council takeover. At very least, it was feared that they would attempt to gain overarching influence on royal matters present and future. This kind of thing has happened time and again in royal history; the only difference in this instance is Richard III's concern for his reputation and status should it be revealed that the princes were deceased..
'Discovery 2: Forensic investigation of all materials relating to the Battle of Bosworth (22 August 1485) revealed that the story of the murder of the Princes originated in England with the arrival of Henry Tudor and his French invasion force. Following the victory of Tudor’s forces (and death of King Richard in battle), and the interrogation of Yorkist/Ricardian prisoners, Henry delayed his march to London in order to conduct searches for the Princes in the north of England.'
This isn't factual - at least five well-known & highly-ranked sources wrote that the rumour was rife amongst people at all levels of society, well before Henry invaded. Though Henry certainly sought evidence, at various times, of course.
'Discovery 3: Edward V: Proof of Life (aged 17). In May 2020, Albert Jan de Rooij of the Dutch Research Group discovered in the archive of Lille in France a receipt belonging to King Maximilian I dated 16 December 1487 and referencing Margaret of Burgundy (Edward’s aunt). The receipt is signed by three leading members of Maximilian’s court and records the king’s collection of, and payment for, 400 pikes (weapons for elite troops). The weapons had been collected by Maximilian in June of that year. The receipt states that the weapons were: ‘to serve her nephew – son of King Edward, late her brother (may God save his soul), [who was] expelled from his dominion.’ Four of the receipts details confirm the weapons were for Edward V. He was the nephew of Margaret of Burgundy, the son of King Edward (IV), the right age to lead an army and fight in battle (16), and had been ‘expelled from his dominion’ (to the Channel Islands). The Lille receipt also suggests that Edward V was alive, or thought to be alive, in December 1487 (age 17). This was after the Battle of Stoke on 16 June 1487.'
Given that Margaret's and Maximilian's protégé, the imposter Perkin Warbeck, wasn't captured and imprisoned by Henry VII until 1497 - and wasn't executed until 1499 - it's hardly surprising to find him posing as either Duke Richard or indeed as Edward (the Fifth) back in the 1480s. He'd formerly posed as the Earl of Warwick too. Margaret herself admitted to Henry VII that Warbeck was an imposter.
'Discovery 4: Richard, Duke of York: Proof of Life (aged 20), 1493. In November 2020, Nathalie Nijman-Bliekendaal of the Dutch Research Group rediscovered a four page, semi-legal manuscript in the Gelderland archive, in Arnhem in the Netherlands. It is a witness statement written in the first person and records Richard, Duke of York’s story from the point at which he left sanctuary in Westminster in London as a 9 year-old boy in 1483, to his arrival at the court of his aunt, Margaret of York, in Burgundy in 1493. The witness statement provides extensive detail.'
Even those looking to support Warbeck's/Richard's/Edward's quest for the English throne - including Spanish royals Ferdinand and Isabella - disbelieved the story of escape he'd been coached by Margaret into reciting (in fact, those two important royals were scathing in their doubt). Having read this account, it beggars belief that he was spared while his brother was murdered; in short, it's a fantasy told in a dubiously vague, sentimental and fey style.
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All of my objections would be known to anyone with a particular interest in the mystery; these would surely be known to someone as involved as Philippa. The only novel aspects are the discoveries of previously unknown sources or artefacts.