After the Hundred Years' War between Britain and France, all feudal nobles with their own armed forces in Britain tried to master the supreme sovereignty of the country. The nobles divided into two factions participated in the internal struggle between the two royal families handed down from the Plantagenet Dynasty. On the one hand, Lancaster Palace is marked by red roses; On one side is the York family marked by white roses. In order to inherit the throne, the two sides fought for 30 years from 1455 to 1485. Because the war was marked by roses, roses were also called roses, so they were named "wars of the roses" (also known as "wars of the roses"). This war also became a big funeral for British feudal nobles.