The main reason for the war was that King Edward III had many sons, as shown in the family tree below. His oldest son, who is known by the nickname, "The Black Prince", died first, and the throne passed to the Black Prince's son, Richard, who became King Richard II of England in 1377 at the age of only ten. He grew up to be a weak and unpopular king, and one of his actions was to send his cousin Henry into exile. Henry later returned, while Richard was away in Ireland, and took over the country. When Richard returned, Henry tricked him into giving himself up. Richard was put in prison, where he died, and Henry became King Henry IV of England.
Although Henry IV reigned until his death, and was followed by his son, King Henry V, the next king in line, King Henry VI was only a baby. While he was still growing up, the most