William Rufus
William Rufus was a strong ruler. He continued the centralised government of his father, enforced justice among the people and strengthened England's ties to Normandy. But the style of his leadership left much to be desired. He was a corrupt and aggressive king. He confiscated wealth and property from the Church and never kept his promises of reform.
The people didn't like that. And they liked it even less when they saw that not only was the king generous towards these foreingers, he also placed them above the law - the law that was so heavily, often brutally, enforced upon the rest of the people.
Henry II
Henry shared much of the greed and ruthlessness of his brother William. But in the day-to-day affairs he was generally more smart than his older brother. Henry got his will by negotiating, by persuasion and by diplomacy - not by killing everyone he didn't like the look of. Nevertheless he had the same problem as his brother: Henry was constantly in fear of plots and felt that he couldn't trust even his closest servants.
Unfortunately the handsome young William drowned when his "White ship" hit an underwater rock and sank in 1120, just a few hundred yards off the coast of Normandy. Then there was no legitimate male heir to the throne. Henry's other legitimate child, Matilda who at the time was married to the German emperor Henry V, was the next in line.
When Matilda's husband died in 1125, she hurried back to England. Henry persuaded his barons to swear an oath to support her. But when Henry died in 1135, they had forgotten about their oath. Instead they supportted Stephen, Henry's nephew from Normandy. So Stephen became the new king of England and in his 19 years on the throne the country was thrown out in a terrible civil war that was only ended when Matilda's son, Henry II, became king in 1154.