Hundred Years' War
Historians commonly divide the war into three phases separated by truces: the Edwardian War (1337–1360), the Caroline War (1369–1389), and the Lancastrian War (1415–1453). Local conflicts in neighbouring areas, which were contemporarily related to the war, including the War of the Breton Succession (1341–1365), the Castilian Civil War (1366–1369), the War of the Two Peters (1356–1369) in Aragon, and the 1383–85 crisis in Portugal, were availed by the parties to advance their agendas. Later historians adopted the term "Hundred Years' War" as a historiographical periodisation to encompass all of these events, thus constructing the longest military conflict in European history.
Edward of Angoulême
Although Richard was only ten years old when he began his reign, towards the end of the 1390s, he began what historians consider to be a period of "tyranny". By the time of Edward's death, England was in the midst of fighting during the Hundred Years' War, which had been started by Edward III. Richard made efforts to end the war, but was unsuccessful due to opposition from his magnates and the French refusing to formally acknowledge their territorial losses by transferring land to the English. In 1399, Richard was imprisoned in the Tower of London and abdicated in favour of his cousin, the Earl of Derby. With Richard's death on 14 February 1400, the direct line of the House of Plantagenet was brought to an end.