Henry VII’s arrests of Yorkist supporters begin with the seizure of Edmund de la Pole and widen into a campaign against the relatives connected to him by blood and marriage. The arrests expose how a family network that once signified shared lineage and political possibility can be recast as a source of suspicion. For Margaret Pole, the danger reaches beyond imprisoned men: it shapes where her children can live, whom she can contact, and how safely she can act.

Edmund de la Pole’s return and arrest

Edmund was a Plantagenet cousin of Margaret’s, Duke of Suffolk, and a prominent figure at court. Unlike his brother, who had led a rebellion against Henry VII and died at the Battle of Stoke, Edmund had remained fiercely loyal to the king. He was a royal insider, a leading jouster, and a visible sign that a Plantagenet could serve a Tudor monarch. His loyalty made his arrest especially destabilizing: a figure who appeared to embody reconciliation became evidence that even service to the crown offered no reliable protection.

Henry VII had paid Maximilian I to betray Edmund, a Yorkist claimant living abroad, and send him back to England. Edmund was promised safe passage and shown a letter bearing the king’s signature and seal. Trusting those assurances and wishing to return home, he entered Calais Castle, where he was arrested. The safe-conduct that should have protected him thus becomes part of the deception that delivers him into royal custody.

A family network under suspicion

Edmund’s arrest sets off a chain of accusations against Margaret’s kinsmen. William Courtenay, already under arrest, is charged with treasonous plotting. William de la Pole is questioned in the Tower of London, while Thomas Grey comes under suspicion for having dined with Edmund years earlier, before Edmund left the country. Men related by marriage and blood are taken into custody, questioned about their associates, and held either in the Tower or sent to Calais Castle. In Margaret’s account, the state turns ordinary ties of kinship and past hospitality into grounds for suspicion.

The family’s reach helps explain the scale of Margaret’s fear. She sees the Plantagenets as an extensive network spread across England, interwoven by blood and marriage, while the Tudor family appears comparatively small. Arrests therefore threaten more than a few individual lives: they sever connections, make past associations dangerous, and leave relatives uncertain about whom it is safe to trust. Margaret describes herself praying for her kinsmen as one after another disappears into custody.

Surveillance and the pressure of silence

At Syon Abbey, Margaret is increasingly afraid that any action might draw attention to her. She writes to her sons, Henry and Arthur, to ask after their studies, but does not invite them to join her: the sisters cannot easily accommodate the young men, and she cannot pay for their journey. When George Neville, who is keeping the boys, is arrested, the threat comes closer still. He leaves them at his home in Kent before entering the Tower, where rumors circulate that Henry VII personally oversees the mistreatment of suspected men.

Margaret wants to bring her sons to her, but decides that doing so could alert the king’s network of informers. She remains at Syon with Ursula and Geoffrey, while Reginald is kept apart from the family in a religious house. Geoffrey is only three, yet Margaret fears that even a child of his lineage may attract royal attention. The arrests therefore govern family life without requiring every relative to be taken: uncertainty and surveillance themselves constrain movement and contact.

George Neville eventually emerges from the Tower, but release does not restore his former life. He is poorer, barred from returning to his home and from several southern counties, and required to pay half his income to the king every quarter. Twenty-six friends have to guarantee his debts. No charge has been proved against him, yet the conditions leave him an exile within England and bind his resources to the crown. Margaret understands the wider pattern as one in which imprisonment and questioning may be followed by pardon, but only at the price of long-lasting financial dependence.

The costs of resistance and the White Rose

George advises Margaret that the boys can safely remain with him, but warns her to stay quiet and trust no one. She burns his letter and does not reply. The gesture captures the campaign’s reach: even a family message that offers reassurance becomes something Margaret cannot safely preserve or answer. Her silence is not a sign that the danger has passed; it is a means of avoiding further notice.

The arrests leave the White Rose as both a political emblem and a vulnerable family identity. George’s warning that these are hard times for the White Rose gives the repression a dynastic meaning, while Margaret’s hiding and separation from her sons show its private cost. The campaign does not simply remove particular rivals from public life. It teaches their relatives to live cautiously, to treat kinship as a possible liability, and to measure every act of contact against the risk of bringing the king’s attention nearer.