Henry IV of England in the context of "Welsh independence"

The Parliament of England was the legislature of the Kingdom of England from the 13th century until 1707 when it was replaced by the Parliament of Great Britain. Parliament evolved from the great council of bishops and peers that advised the English monarch. Great councils were first called Parliaments during the reign of Henry III (r. 1216–1272). By this time, the king required Parliament's consent to levy taxation.

Originally a unicameral body, a bicameral Parliament emerged when its membership was divided into the House of Lords and House of Commons, which included knights of the shire and burgesses. During Henry IV's reign, the role of Parliament expanded beyond the determination of taxation policy to include the right to petition, which essentially enabled English citizens to petition the body to address complaints in their local towns and counties. By this time, citizens were given the power to vote to elect their representatives—the burgesses—to the House of Commons.

Duke of Bedford (named after Bedford, England) is a title that has been created six times (for five distinct people) in the Peerage of England. The first creation came in 1414 for Henry IV's third son, John, who later served as regent of France. In 1433 he surrendered the title and it was re-granted to him. The title became extinct on his death in 1435. The third creation came in 1470 in favour of George Neville, nephew of Warwick the Kingmaker. He was deprived of the title by Act of Parliament in 1478. The fourth creation came in 1478 in favour of George, the third son of Edward IV. He died the following year at the age of two. The fifth creation came in 1485 in favour of Jasper Tudor, half-brother of Henry VI and uncle of Henry VII. He had already been created Earl of Pembroke in 1452. However, as he was a Lancastrian, his title was forfeited between 1461 and 1485 during the predominance of the House of York. He regained the earldom in 1485 when his nephew Henry VII came to the throne and was elevated to the dukedom the same year. He had no legitimate children and the titles became extinct on his death in 1495.

John Russell, a close adviser of Henry VIII and Edward VI, was granted the title of Earl of Bedford in 1551, and his descendant William, 5th Earl, was created Duke in 1694, following the Glorious Revolution. The Russell family currently holds the titles of Earl and Duke of Bedford.

The Merry Wives of Windsor or Sir John Falstaff and the Merry Wives of Windsor is a comedy by William Shakespeare first published in 1602, though believed to have been written in or before 1597. The Windsor of the play's title is a reference to the town of Windsor, also the location of Windsor Castle in Berkshire, England. Though nominally set in the reign of Henry IV or early in the reign of Henry V, the play makes no pretence to exist outside contemporary Elizabethan-era English middle-class life. It features the character Sir John Falstaff, the fat knight who had previously been featured in Henry IV, Part 1 and Part 2. It has been adapted for the opera at least ten times. The play is one of Shakespeare's lesser-regarded works among literary critics.Tradition has it that The Merry Wives of Windsor was written at the request of Queen Elizabeth I, who watching Henry IV, Part 1, is said to have asked Shakespeare to write a play depicting Falstaff in love.

John of Lancaster, Duke of Bedford (20 June 1389 – 14 September 1435) was a medieval English prince, general, and statesman who commanded England's armies in France during a critical phase of the Hundred Years' War. Bedford was the third son of King Henry IV of England, brother to Henry V, and acted as regent of France for his nephew Henry VI. Despite his military and administrative talent, the situation in France had severely deteriorated (for the English) by the time of his death.

Bedford was a capable administrator and soldier, and his effective management of the war brought the English to the height of their power in France. However, difficulties mounted after the arrival of Joan of Arc, and his efforts were further thwarted by political divisions at home and the wavering of England's key ally, Duke Philip of Burgundy and his faction, the Burgundians. In the last years of Bedford's life, the conflict devolved into a war of attrition, and he became increasingly unable to gather the necessary funds to prosecute the conflict.

The Anglo-Scottish Wars comprise the various battles which continued to be fought between the Kingdom of England and the Kingdom of Scotland from the time of the Wars of Independence in the early 14th century through to the latter years of the 16th century.

Although the Wars of Independence, in which Scotland twice resisted attempted conquest by Plantagenet kings of England, formally ended in the treaties of 1328 and 1357 respectively, relations between the two countries remained uneasy. Incursions by English kings into Scotland continued under Richard II and Henry IV and informal cross-border conflict remained endemic. Formal flashpoints on the border included places remaining under English occupation, such as Roxburgh Castle and the port of Berwick-upon-Tweed. Roxburgh was recaptured by the Scots in 1460 under Mary of Guelders after the death of James II in the same campaign. Similarly, they captured Berwick in 1461 in exchange for support to the Lancastrians. Berwick had changed hands a number of times in the past, and as one country attempted to take advantage of weakness or instability in the other, siding on one side in the civil war, culminating in final capture for the English of the Scottish port by the Yorkist Richard, Duke of Gloucester in 1482.

Henry V (16 September 1386 – 31 August 1422), also called Henry of Monmouth, was King of England from 1413 until his death in 1422. Despite his relatively short reign, Henry's outstanding military successes in the Hundred Years' War against France made England one of the strongest military powers in Europe. Immortalised in Shakespeare's Henriad plays, Henry is known and celebrated as one of the greatest warrior-kings of medieval England.

Henry of Monmouth, the eldest son of Henry IV, became heir apparent and Prince of Wales after his father seized the throne in 1399. During the reign of his father, the young Prince Henry gained early military experience in Wales during the Glyndŵr rebellion, and by fighting against the powerful Percy family of Northumberland. He played a central part at the Battle of Shrewsbury despite being just sixteen years of age. As he entered adulthood, Henry played an increasingly central role in England's government due to the declining health of his father, but disagreements between Henry and his father led to political conflict between the two. After his father's death in March 1413, Henry ascended to the throne of England and assumed complete control of the country, also reviving the historic English claim to the French throne.