Richard Neville, 16th Earl of Warwick, 6th Earl of Salisbury KG (22 November 1428 – 14 April 1471), known as Warwick the Kingmaker, was an English nobleman, administrator, landowner of the House of Neville fortune and military commander. The eldest son of Richard Neville, 5th Earl of Salisbury, he became Earl of Warwick through marriage, and was the wealthiest and most powerful English peer of his age, with political connections that went beyond the country's borders. One of the leaders in the Wars of the Roses, originally on the Yorkist side but later switching to the Lancastrian side, he was instrumental in the deposition of two kings, which led to his epithet of "Kingmaker".

Through fortunes of marriage and inheritance, Warwick emerged in the 1450s at the centre of English politics. Originally, he was a supporter of King Henry VI; however, a territorial dispute with Edmund Beaufort, Duke of Somerset, led him to collaborate with Richard, Duke of York, in opposing the king. From this conflict, he gained the strategically valuable post of Captain of Calais, a position that benefited him greatly in the years to come. The political conflict later turned into full-scale rebellion, where in battle York was slain, as was Warwick's father Salisbury. York's son, however, later triumphed with Warwick's assistance, and was crowned King Edward IV. Edward initially ruled with Warwick's support, but the two later fell out over foreign policy and the king's choice to marry Elizabeth Woodville. After a failed plot to crown Edward's brother, George, Duke of Clarence, Warwick instead restored Henry VI to the throne. The triumph was short-lived, however: on 14 April 1471, Warwick was defeated by Edward at the Battle of Barnet, and killed.

Warwick's historical legacy has been a matter of much dispute. Historical opinion has alternated between seeing him as self-centred and rash, and regarding him as a victim of the whims of an ungrateful king. It is generally agreed, however, that in his own time, he enjoyed great popularity in all layers of society, and that he was skilled at appealing to popular sentiments for political support.

The Neville family, an ancient Durham family, came to prominence in England's fourteenth-century wars against the Scots. In 1397, King Richard II granted Ralph Neville the title of Earl of Westmorland. Ralph's son Richard, the later Earl of Warwick's father, was a younger son by a second marriage, and not heir to the earldom. He received a favourable settlement, however, and became jure uxoris ("by right of his wife") Earl of Salisbury through his marriage to Alice, daughter and heiress of Thomas Montagu, 4th Earl of Salisbury.

Salisbury's son Richard, the later Earl of Warwick, was born on 22 November 1428; little is known of his childhood. At the age of eight, in 1436, Richard was married to Lady Anne Beauchamp, daughter of Richard de Beauchamp, 13th Earl of Warwick, and of his wife Isabel Despenser. This made him heir not only to the earldom of Salisbury, but also to a substantial part of the Montague, Beauchamp, and Despenser inheritance.

Circumstances would, however, increase his fortune even further. Beauchamp's son Henry, who had married the younger Richard's sister Cecily, died in 1446. When Henry's daughter Anne died in 1449, Richard also found himself jure uxoris Earl of Warwick. Richard's succession to the estates did not go undisputed, however. A protracted battle over parts of the inheritance ensued, particularly with Edmund Beaufort, 2nd Duke of Somerset, who had married a daughter from Richard Beauchamp's first marriage. The dispute centred on land, not on the Warwick title, as Henry's half-sisters were excluded from the succession.

By 1445 Richard had become a knight, probably at Margaret of Anjou's coronation on 30 May that year; also around this time, his illegitimate daughter, Margaret (who married Richard Huddleston on 12 June 1464) was born.

He is visible in the historical record of service of King Henry VI in 1449, which makes mention of his services in a grant. He performed military service in the north with his father, and might have taken part in the war against Scotland in 1448–1449. When Richard, Duke of York, unsuccessfully rose up against the king in 1452, both Warwick and his father rallied to the side of King Henry VI.

In June 1453, Somerset was granted custody of the lordship of Glamorgan—part of the Despenser heritage held by Warwick until then—and open conflict broke out between the two men. Then, in the summer of that year, King Henry fell ill. Somerset was a favourite of the king and Queen Margaret, and with the king incapacitated he was virtually in complete control of the government. This put Warwick at a disadvantage in his dispute with Somerset, and drove him into collaboration with York. The political climate, influenced by the military defeat in France, then started turning against Somerset. On 27 March 1454, a group of royal councillors appointed the Duke of York protector of the realm. York could now count on the support not only of Warwick but also of Warwick's father Salisbury, who had become more deeply involved in disputes with the House of Percy in the north of England.

York's first protectorate did not last long. Early in 1455, the king rallied sufficiently to return to power, at least nominally, with Somerset again wielding real power. Warwick returned to his estates, as did York and Salisbury, and the three started raising troops. Marching towards London, they encountered the king at St Albans, where the two forces clashed. The battle was brief and not particularly bloody, but it was the first instance of armed hostilities between the forces of the Houses of York and Lancaster in the conflict known as the Wars of the Roses. It was also significant because it resulted in the capture of the king, and the death of Somerset.

York's second protectorate that followed was even shorter-lived than the first. At the parliament of February 1456 the king—now under the influence of Queen Margaret—resumed personal government of the realm. By this time Warwick had taken over Salisbury's role as York's main ally, even appearing at that same parliament to protect York from retributions. This conflict was also a pivotal period in Warwick's career, as it was resolved by his appointment as Constable of Calais. The post was to provide him with a vital power base in the following years of conflict. The continental town of Calais, conquered from France in 1347, was not only of vital strategic importance, it also held what was England's largest standing army. There were some initial disputes, with the garrison and with the royal wool monopoly known as the staple, over payments in arrears, but in July Warwick finally took up his post.

After the recent events, Queen Margaret still considered Warwick a threat to the throne, and cut off his supplies. In August 1457, however, a French attack on the English seaport of Sandwich set off fears of a full-scale French invasion. Warwick was again funded to protect the garrison and patrol the English coast. In disregard of royal authority, he then conducted highly successful acts of piracy, against the Castilian fleet in May 1458, and against the Hanseatic fleet a few weeks later. He also used his time on the Continent to establish relations with Charles VII of France and Philip the Good of Burgundy. Developing a solid military reputation and with good international connections, he then brought a part of his garrison to England, where he met up with his father and York in the autumn of 1459.

In September 1459 Warwick crossed over to England and made his way north to Ludlow to meet up with York and Salisbury, the latter fresh from his victory over Lancastrians at the Battle of Blore Heath. At nearby Ludford Bridge their forces were scattered by the king's army, partly because of the defection of Warwick's Calais contingent under the command of Andrew Trollope. As it turned out, the majority of the soldiers were still reluctant to raise arms against the king. Forced to flee the country, York left for Dublin, Ireland, with his second son Edmund, Earl of Rutland, while Warwick and Salisbury sailed to Calais, accompanied by the Duke's son, Edward, Earl of March (the future King Edward IV). Henry Beaufort, Duke of Somerset, was appointed to replace Warwick as Captain of Calais, but the Yorkists managed to hold on to the garrison.

In March 1460 Warwick visited York in Ireland to plan the way ahead, and returned to Calais. Then, on 26 June, he landed at Sandwich with Salisbury and March, and from here the three earls rode north to London. Salisbury was left to besiege the Tower of London, while Warwick took March with him in pursuit of the king. At Northampton, on 10 July, King Henry was taken captive, while Humphrey Stafford, 1st Duke of Buckingham and others were killed in battle.

In September York arrived from Ireland, and at the parliament of October that year, the Duke walked up to the throne and put his hand on it. The act, signifying usurpation, left the assembly in shock. It is unclear whether Warwick had prior knowledge of York's plans, though it is assumed that this had been agreed upon between the two in Ireland the previous March. It soon became clear, however, that this regime change was unacceptable to the lords in parliament, and a compromise was agreed. The Act of Accord of 25 October 1460 stated that while Henry VI was allowed to stay on the throne for the remainder of his life, his son Edward, Prince of Wales, was to be disinherited. Instead, York would succeed the king, and act as protector.

This solution was not ideal to either party, and further conflict was inevitable. On 30 December, at the Battle of Wakefield, York was killed, as were York's second son Edmund, Earl of Rutland, and Warwick's younger brother Thomas. Salisbury was executed a day later. Warwick marched north to confront the enemy, but was defeated and forced to flee at the Second Battle of St Albans. He then joined forces with Prince Edward of York, the new Yorkist claimant to the crown, who had just won an important victory at the Battle of Mortimer's Cross.

While Queen Margaret was hesitating to make her next move, Warwick and Edward hastened to London. The citizens of the capital were scared by the brutal conduct of the Lancastrian forces, and were sympathetic to the House of York. On 4 March the prince was proclaimed King Edward IV by an assembly that gathered quickly. The new king now headed north to consolidate his title, and met with the Lancastrian forces at Towton in Yorkshire. Warwick had suffered an injury to the leg the day before, in the Battle of Ferrybridge, and may have played only a minor part in the battle that followed. The unusually bloody battle resulted in a complete victory for the Yorkist forces, and the death of many important men on the opposing side, such as Henry Percy, Earl of Northumberland, and Andrew Trollope. Queen Margaret managed to escape to Scotland, with Henry and Prince Edward. Edward IV returned to London for his coronation, while Warwick remained to pacify the north.

Warwick's position after the accession of Edward IV was stronger than ever. He had now succeeded to his father's possessions—including his vast network of retainers—and in 1462 he also inherited his mother's lands and the Salisbury title. Altogether, he had an annual income from his lands of over £7,000, far more than any other man in the realm but the king. Edward confirmed Warwick's position as Captain of Calais, and made him High Admiral of England and Steward of the Duchy of Lancaster, along with several other offices. His brothers also benefited: John Neville, Lord Montagu, was made Warden of the East March in 1463, and the next year created Earl of Northumberland. George Neville, Bishop of Exeter, was confirmed in his post as chancellor by King Edward, and in 1465 promoted to the archbishopric of York.

By late 1461, risings in the north had been put down, and in the summer of 1462, Warwick negotiated a truce with Scotland. In October the same year, Margaret of Anjou invaded England with troops from France, and managed to take the castles of Alnwick and Bamburgh. Warwick had to organise the recapture of the castles, which was accomplished by January 1463. The leaders of the rebellion, including Ralph Percy, were pardoned and left in charge of the retaken castles. At this point, Warwick felt secure enough to travel south; in February he buried the remains of his father and brother at Bisham Priory, and in March he attended parliament at Westminster.

That same spring, however, the north rose up in rebellion once more, when Ralph Percy laid siege to Norham Castle. Warwick returned to the north and rescued Norham in July, but the Lancastrians were left in possession of Northumberland, and the government decided on a diplomatic approach instead. Separate truces were negotiated with Scotland and France by late 1463, which allowed Warwick to retake the Northumbrian castles held by the Lancastrian rebels in the spring of 1464. This time no clemency was given, and around thirty of the rebel leaders were executed.

At the negotiations with the French, Warwick had intimated that King Edward was interested in a marriage arrangement with the French crown, the intended bride being Louis XI's sister-in-law, Bona, daughter of Louis, Duke of Savoy. This marriage was not to be, however, because in September 1464, Edward revealed that he was already married, to Elizabeth Woodville. The marriage caused great offence to Warwick: not only due to the fact that his plans had been sabotaged, but also the secrecy with which the king had acted. The marriage—contracted on 1 May of the same year—was not made public before Warwick pressed Edward on the issue at a council meeting, and in the meanwhile, Warwick had been unknowingly deceiving the French into believing the king was serious about the marriage proposal. For Edward the marriage may very well have been a love match, but in the long run he sought to build the Woodville family into a powerhouse independent of Warwick's influence. The marriage of Edward IV and Elizabeth Woodville caused Warwick to lose his power and influence. He accused Elizabeth, and her mother Jacquetta of Luxembourg, of witchcraft to try to restore the power that he had lost.

This was not enough to cause a complete fallout between the two men, though from this point on Warwick increasingly stayed away from court. The promotion of Warwick's brother George to Archbishop of York shows that the earl was still in favour with the king. In July 1465, when Henry VI was once more captured, it was Warwick who escorted the fallen king to his captivity in the Tower.

Then, in the spring of 1466, Warwick was sent to the continent to carry out negotiations with the French and Burgundians. The negotiations centred around a marriage proposal involving Edward's sister Margaret. Warwick increasingly came to favour French diplomatic connections. Meanwhile, Edward's father-in-law, Richard Woodville, Earl Rivers, who had been created treasurer, was in favour of a Burgundian alliance. This set up an internal conflict within the English court, which was not alleviated by the fact that Edward had signed a secret treaty in October with Burgundy, while Warwick was forced to carry on sham negotiations with the French. Later, George Neville was dismissed as chancellor, while Edward refused to contemplate a marriage between Warwick's oldest daughter Isabel, and Edward's brother George, Duke of Clarence. It became increasingly clear that Warwick's position of dominance at court had been taken over by Rivers.

In the autumn of 1467, there were rumours that Warwick was now sympathetic to the Lancastrian cause, but even though he refused to come to court to answer the charges, the king accepted his denial in writing. In July 1468, it was revealed that Warwick's deputy in Calais, John, Lord Wenlock, was involved in a Lancastrian conspiracy, and early in 1469 another Lancastrian plot was uncovered, involving John de Vere, Earl of Oxford. It was becoming clear that the discontent with Edward's reign was widespread, a fact that Warwick could exploit.

Warwick now orchestrated a rebellion in Yorkshire while he was away, led by a "Robin of Redesdale". Part of Warwick's plan was winning over King Edward's younger brother, George Plantagenet, possibly with the prospect of installing him on the throne. The nineteen-year-old George had shown himself to share many of the abilities of his older brother, but was also jealous and overambitious.

In July 1469, the two sailed over to Calais, where George was married to Warwick's daughter, Lady Isabel Neville. From there, they returned to England, where they gathered the men of Kent to join the rebellion in the north. Meanwhile, the king's forces were defeated at the Battle of Edgecote, where William Herbert, Earl of Pembroke, was killed. The other commander, Humphrey Stafford, Earl of Devon, was caught in flight and lynched by a mob. Later, Earl Rivers and his son, John Woodville, were also apprehended and murdered. With his army now defeated, King Edward IV was taken under arrest by George Neville. Warwick then imprisoned the king in Warwick Castle, and in August, the king was taken north to Middleham Castle. In the long run, however, it proved impossible to rule without the king, and continuing disorder forced Warwick to release King Edward IV in September 1469.

A modus vivendi had been achieved between Warwick and the king for some months, but the restoration of Henry Percy to Montagu's earldom of Northumberland prevented any chance of full reconciliation. A trap was set for the king when disturbances in Lincolnshire led him north, where he could be confronted by Warwick's men. Edward, however, discovered the plot when Robert, Lord Welles, was routed at Losecote Field in Rutland in March 1470, and gave away the plan.

Warwick soon gave up, and once more fled the country with Clarence. Denied access to Calais, they sought refuge with King Louis XI of France. Louis arranged a reconciliation between Warwick and Margaret of Anjou, and as part of the agreement, Margaret and Henry's son, Edward, Prince of Wales, would marry Warwick's daughter Anne. The objective of the alliance was to restore Henry VI to the throne. Again, Warwick staged an uprising in the north, and with the king away, he and Clarence landed at Dartmouth and Plymouth on 13 September 1470.

Among the many who flocked to Warwick's side was his brother Montagu, who had not taken part in the last rebellion, but was disappointed when his loyalty to the king had not been rewarded with the restoration of his earldom. This time the trap set up for the king worked; as Edward hurried south, Montagu's forces approached from the north, and the king found himself surrounded. On 2 October he fled to Flanders, a part of the Duchy of Burgundy. King Henry was now restored, with Warwick acting as the true ruler in his capacity as lieutenant. At a parliament in November, Edward was attainted of his lands and titles, and Clarence was awarded the Duchy of York.

At this point, international affairs intervened. Louis XI declared war on Burgundy, and Charles the Bold responded by granting an expeditionary force to Edward IV, in order to reclaim his throne. On 14 March 1471, Edward landed at Ravenspurn in Yorkshire, with the acquiescence of the Earl of Northumberland. Warwick was still waiting for Queen Margaret and her son Edward, who were supposed to bring reinforcements from France, but were kept on the continent by bad weather. At this point, Edward received the support of his brother Clarence, who realised that he had been disadvantaged by the new agreement with the Lancastrians. Clarence's defection weakened Warwick, who nevertheless went in pursuit of Edward. On 14 April 1471 the two armies met at Barnet. Fog and poor visibility on the field led to confusion, and the Lancastrian army ended up attacking its own men. In the face of defeat Warwick attempted to escape the field, but was struck off his horse and killed.