Answer:
Due to no children of Edward the Confessor.
Explanation:
Edward the Confessor died in 1066 having no children which sit on his throne which leads to succession crises. The throne was seized by his leading aristocrat, Harold Godwinson and he became the king of England. With this act, he faced two wars, one from the king of Norway, Harald Hardrada and the other from William, Duke of Normandy. Harold defeated the Norwegian but he was defeated and killed at the Battle of Hastings.
