Henry IV, also known as Henry Bolingbroke, was King of England from 1399 to 1413. He asserted the claim of his grandfather King Edward III, a maternal grandson of Philip IV of France, to the Kingdom of France.
John of Gaunt, Duke of Lancaster was an English prince, military leader, and statesman. He was the third of the five sons of King Edward III of England who survived to adulthood. Due to his royal origin, advantageous marriages, and some generous land grants, Gaunt was one of the richest men of his era, and an influential figure during the reigns of both his father, Edward, and his nephew, Richard II. As Duke of Lancaster, he is the founder of the royal House of Lancaster, whose members would ascend to the throne after his death. His birthplace, Ghent, corrupted into English as Gaunt, was the origin for his name. When he became unpopular later in life, scurrilous rumours and lampoons circulated that he was actually the son of a Ghent butcher, perhaps because Edward III was not present at the birth. This story always drove him to fury.
Katherine Swynford, Duchess of Lancaster, also spelled Katharine or Catherine, was the third wife of John of Gaunt, Duke of Lancaster, a son of King Edward III. She had been the Duke's lover for many years before their marriage. The couple's children, born before the marriage, were later legitimised during the reign of the Duke's nephew, Richard II. When the Duke's son from his first marriage overthrew Richard, becoming Henry IV, he introduced a provision that neither they nor their descendants could ever claim the throne of England, however, the legitimacy for all rights was a parliamentary statute that Henry IV lacked the authority to amend.
John Beaufort, 1st Marquess of Somerset and 1st Marquess of Dorset, later only 1st Earl of Somerset, was an English nobleman and politician. He was the first of the four illegitimate children of John of Gaunt (1340-1399) by his mistress Katherine Swynford, whom he later married in 1396. Beaufort's surname probably reflects his birthplace at his father's castle and manor of Beaufort in Champagne, France, situated 100 miles east of Paris, 25 miles north-east of Troyes, and between the River Seine and River Marne. The Portcullis heraldic badge of the Beauforts, now the emblem of the House of Commons, is believed to have been based on that of the castle of Beaufort, now demolished.
The House of Lancaster was the name of two cadet branches of the royal House of Plantagenet. The first house was created when Henry III of England created the Earldom of Lancaster—from which the house was named—for his second son Edmund Crouchback in 1267. Edmund had already been created Earl of Leicester in 1265 and was granted the lands and privileges of Simon de Montfort, 6th Earl of Leicester, after de Montfort's death and attainder at the end of the Second Barons' War. When Edmund's son Thomas, 2nd Earl of Lancaster, inherited his father-in-law's estates and title of Earl of Lincoln he became at a stroke the most powerful nobleman in England, with lands throughout the kingdom and the ability to raise vast private armies to wield power at national and local levels. This brought him—and Henry, his younger brother—into conflict with their cousin Edward II of England, leading to Thomas's execution. Henry inherited Thomas's titles and he and his son, who was also called Henry, gave loyal service to Edward's son—Edward III of England.
The House of York was a cadet branch of the English royal House of Plantagenet. Three of its members became kings of England in the late 15th century. The House of York was descended in the male line from Edmund of Langley, 1st Duke of York, the fourth surviving son of Edward III, but also represented Edward's senior line, being cognatic descendants of Lionel, Duke of Clarence, Edward III's second surviving son. It is based on these descents that they claimed the English crown. Compared with the House of Lancaster, it had a senior claim to the throne of England according to cognatic primogeniture but junior claim according to the agnatic primogeniture. The reign of this dynasty ended with the death of Richard III of England at the Battle of Bosworth Field in 1485. It became extinct in the male line with the death of Edward Plantagenet, 17th Earl of Warwick, in 1499.
Edmund of Langley, 1st Duke of York, KG was the fourth surviving son of King Edward III of England and Philippa of Hainault. Like many medieval English princes, Edmund gained his nickname from his birthplace: Kings Langley Palace in Hertfordshire. He was the founder of the House of York, but it was through the marriage of his younger son, Richard of Conisburgh, 3rd Earl of Cambridge, to Anne de Mortimer, great-granddaughter of Edmund's elder brother Lionel of Antwerp, 1st Duke of Clarence, that the House of York made its claim to the English throne in the Wars of the Roses. The other party in the Wars of the Roses, the incumbent House of Lancaster, was formed from descendants of Edmund's elder brother John of Gaunt, 1st Duke of Lancaster, Edward III's third son.
Anne Mortimer was a medieval English noblewoman who became an ancestress to the royal House of York, one of the parties in the fifteenth-century dynastic Wars of the Roses. It was her line of descent which gave the Yorkist dynasty its claim to the throne. Anne was the mother of Richard, Duke of York, and thus grandmother of kings Edward IV and Richard III.
Edmund Mortimer, 5th Earl of March, 7th Earl of Ulster was an English nobleman and a potential claimant to the throne of England. A great-great-grandson of King Edward III of England, he was heir presumptive to King Richard II of England, his granduncle, when Richard II was deposed in favour of Henry IV. Edmund Mortimer's claim to the throne was the basis of rebellions and plots against Henry IV and his son Henry V, and was later taken up by the House of York in the Wars of the Roses, though Mortimer himself was an important and loyal vassal of Henry V and Henry VI. Edmund was the last Earl of March of the Mortimer family.
Edmund de Mortimer, 3rd Earl of March and jure uxoris Earl of Ulster was son of Roger Mortimer, 2nd Earl of March, by his wife Philippa, daughter of William Montagu, 1st Earl of Salisbury and Catherine Grandison.
The House of Plantagenet was a royal house which originated from the lands of Anjou in France. The name Plantagenet is used by modern historians to identify four distinct royal houses: the Angevins, who were also counts of Anjou; the main body of the Plantagenets following the loss of Anjou; and the Plantagenets' two cadet branches, the houses of Lancaster and York. The family held the English throne from 1154, with the accession of Henry II, until 1485, when Richard III died in battle.
Elizabeth de Burgh, Duchess of Clarence, suo jure 4th Countess of Ulster and 5th Baroness of Connaught was a Norman-Irish noblewoman who married Lionel of Antwerp, 1st Duke of Clarence.
Anne of Gloucester, Countess of Stafford was the eldest daughter of Thomas of Woodstock, Duke of Gloucester, and Eleanor de Bohun.
Henry Scrope, 3rd Baron Scrope of Masham KG was a favourite of Henry V, who performed many diplomatic missions. He was beheaded for his involvement in the notional Southampton Plot to assassinate the king. Some historians believe that the charge was trumped-up to punish him for other acts of disloyalty, and that there may never have been such a plot.
Thomas Chaucer was Speaker of the House of Commons and son of Geoffrey Chaucer, the poet, by his wife Philippa Roet.
The Southampton Plot was a conspiracy in medieval England, revealed in 1415, to depose King Henry V and replace him with Edmund Mortimer, 5th Earl of March.
Alianore Holland, Countess of March was the eldest daughter of Thomas Holland, 2nd Earl of Kent, and the wife of Roger Mortimer, 4th Earl of March, heir presumptive to her uncle, King Richard II. Through her daughter, Anne Mortimer, she was the great-grandmother of the Yorkist kings Edward IV and Richard III. She was governess to Richard II's wife, Isabella of Valois.
Sir Edmund Mortimer IV was an English nobleman, landowner and rebel who played a part in the rebellions of the Welsh leader Owain Glyndŵr and of the Percy family against King Henry IV, at the beginning of the 15th century. He perished at the siege of Harlech as part of these conflicts. He was related to many members of the English royal family through his mother, Philippa, Countess of Ulster, who was a granddaughter of King Edward III of England.