30 KT4 - The Yorkists divided, 1478-85

The enquiry frame

The specification topic is a depth enquiry into how Yorkist rule unravelled between 1478 and 1485. It has three linked questions:

• Why did Edward IV attaint and execute his brother George, Duke of Clarence, in 1478?
• Why did Richard III face such severe challenges after seizing the throne in 1483?
• Why did Henry Tudor, a long-term exile with a weak hereditary claim, win at Bosworth in 1485?

A working chronology helps keep the argument precise:

The enquiry is therefore about legitimacy as much as battle. In 1471 Edward IV had restored Yorkist rule by victory and political management. By 1485 Richard III still had legal title and a larger army, but too many people had reason to doubt, resent or wait.

Clarence and Yorkist division

George, Duke of Clarence, was dangerous because he was not merely a discontented noble. He was Edward IV's brother, a son of Richard, Duke of York, and therefore a prince with royal blood. In a period when kingship rested on dynasty, noble followings and military credibility, a royal brother could become a focus for opposition even if his own judgement was poor.

Clarence's earlier career had already made Edward suspicious. In 1469 he married Isabel Neville, daughter of Richard Neville, Earl of Warwick. This linked him to Warwick at the moment when Warwick was turning against Edward IV. Clarence then supported rebellion against Edward, and in 1470 he and Warwick helped force Edward into exile while Henry VI was briefly restored. Clarence returned to Edward's side in 1471 before the battles of Barnet and Tewkesbury, so Edward had practical reasons to forgive him: Yorkist unity mattered more than revenge while Lancastrian forces still existed. But forgiveness did not mean trust.

The Neville inheritance worsened tensions in the Yorkist camp. Clarence's wife Isabel and Richard of Gloucester's wife Anne were Warwick's daughters. After Warwick's death in 1471, Clarence wanted to control as much of the Neville-Beauchamp inheritance as possible. Richard's marriage to Anne Neville threatened that ambition. Edward IV had to manage a quarrel between his two surviving brothers over lands, titles and influence. This mattered because noble power was not abstract: land produced income, retainers, local authority and political confidence.

Clarence's behaviour after Isabel's death in 1476 made him look uncontrollable. He sought a marriage to Mary of Burgundy, the wealthy heiress of the Burgundian lands, but Edward opposed it. Edward did not want Clarence gaining an international power base or disrupting Yorkist diplomacy with Burgundy. Clarence also pursued those he blamed for Isabel's death and became associated with rumours, prophecies and accusations that undermined Edward's kingship. The charges later presented against him included slandering the king, receiving oaths of allegiance to himself and his heirs, and preparing fresh rebellion.

The parliamentary attainder of 1478 was therefore both legal and political.

It was useful to Edward because it clothed the destruction of Clarence in public authority. It was also revealing. Edward did not simply discipline a noble; he used Parliament to condemn his own brother. Clarence was privately executed in the Tower on 18 February 1478. Edexcel's wording, "murder", points to the political reality beneath the legal form: this was the killing of a royal brother whose death served the king's dynastic security. The later story that Clarence was drowned in a butt of malmsey wine may be legendary, but the private execution itself mattered because it removed Clarence without the spectacle of killing a royal duke in public.

Edward's decision can be defended as a security measure. Clarence had betrayed him before, was linked to overmighty noble interests, and seemed unwilling to accept a subordinate place. Yet the deeper consequence was damaging. The Yorkist dynasty had already depended on family cooperation between Edward and Richard. Clarence's fall advertised that Yorkist unity was conditional and fragile. It also removed one adult prince from the political equation, leaving Richard of Gloucester as the dominant surviving brother when Edward died in 1483.

Edward IV's death and the protectorate crisis

Edward IV's death on 9 April 1483 was the turning point because it removed the one Yorkist who had repeatedly proved he could win battles, manage nobles and make the regime work. Edward was only 40. His heir, Edward V, was 12. A boy king was not impossible, but England's recent memory of Henry VI's minority made minority rule look risky. A child king needed adult protectors; adult protectors attracted faction.

Edward IV had not left a simple political machine. His household, council and regional arrangements contained rival interests. The Woodvilles, the family of Queen Elizabeth Woodville, were central around the young Edward V at Ludlow. Anthony Woodville, Earl Rivers, was the prince's uncle and governor. Richard Grey, Edward V's half-brother, also travelled with him. William, Lord Hastings, was a powerful Edwardian loyalist at court. Richard, Duke of Gloucester, had long governed effectively in the north and had a strong affinity there. These men were all Yorkists in a broad sense, but they did not trust each other.

Richard's first move could be presented as lawful protection. Edward IV apparently intended him to have a leading role as Protector. Richard feared that the Woodvilles might dominate the child king before he could exercise that role. In late April 1483 he intercepted Edward V's party at Stony Stratford, arrested Earl Rivers, Richard Grey and Thomas Vaughan, and took possession of the king. Edward V entered London and was lodged in the Tower, which was still a royal residence traditionally used before coronations as well as a prison.

The problem is that Richard's actions quickly moved from protection to political takeover. Edward V's coronation was delayed. Elizabeth Woodville took sanctuary at Westminster Abbey with her daughters and younger son Richard, Duke of York. In June, under pressure, the younger prince was brought to join his brother in the Tower. Then Richard struck against Hastings, a man who had supported Gloucester against the Woodvilles but would not accept the deposition of Edward V. Hastings was accused of treason and executed without a normal trial in mid-June.

Richard's claim to the throne rested on the argument that Edward IV's children were illegitimate because Edward had supposedly been pre-contracted to Lady Eleanor Butler before marrying Elizabeth Woodville. If that were true, Edward's marriage to Elizabeth was invalid and their children could not inherit. The claim was preached publicly by Ralph Shaa on 22 June, used in the petition offering the crown to Richard, and later formalised by the 1484 statute known as Titulus Regius. Richard accepted the throne on 26 June 1483 and was crowned Richard III on 6 July.

The significance of the seizure was enormous. Richard did not simply fill a gap left by Edward IV; he overturned the expected succession of Edward IV's son. This gave him an immediate legal argument, but it also created lasting political doubt. Supporters could say he had saved the realm from Woodville domination and a dangerous minority. Opponents could say he had betrayed his brother's children and turned the protectorship into usurpation. For source utility, this is exactly why accounts of 1483 must be handled carefully: writers close to events may preserve valuable detail about rumours and sequence, but their political loyalties and limited access shape what they could know.

Princes, Buckingham and Richard's vulnerability

The disappearance of the princes in the Tower was the single most damaging mystery of Richard III's reign. Edward V and his younger brother Richard were last seen less and less often during the summer of 1483. No public explanation, funeral or official display settled their fate. That silence was politically disastrous.

You do not need to prove beyond doubt who killed the princes to understand the effect. Richard had custody of them. He had just benefited from their removal from the succession. If they were alive, they were potential figureheads for rebellion. If they were dead, Richard would be suspected. This made his position almost impossible. Rumour mattered because late medieval politics depended on public trust in legitimate rule, noble honour and divine judgement. A king suspected of murdering children in his care could not easily claim to be the restorer of lawful order.

The source problem is central. Dominic Mancini, an Italian visitor in England in 1483, reported that the princes were increasingly withdrawn from sight and that suspicion grew that they had been done away with. That is valuable because it is close to the events and not written after Henry VII's victory. But Mancini was also reporting what he saw and heard as an outsider, including court gossip. Thomas More's later account gave a much fuller murder story, but it was written decades later under the Tudors and is shaped by hindsight and anti-Richard tradition. A good AO2 answer would not accept or reject either source lazily. It would ask what each can reveal about contemporary fear, later memory and political blame.

Buckingham's rebellion in October 1483 showed how rapidly Richard's support had narrowed. Henry Stafford, Duke of Buckingham, had helped Richard in the spring and summer. His turn against Richard was therefore a serious sign of instability at the top of the regime. The rebellion was not only Buckingham's personal rising. It included southern and western discontent, Edwardian Yorkists, Woodville interests, Margaret Beaufort's network, and supporters who began to look to Henry Tudor as an alternative.