Stephen

Before the death of Henry I,Stephen the grandson of William The Conqueror, along with many other barons had sworn to let Henry's daughter Matilda become the next Monarch of England. However on Henry's death in 1135 Stephen Ursurped the throne and after that there was a long civil war between Stephen and Matilda however Matilda pulled out the war in 1148 but then because Stephen had no heir Matilda's son Henry of Anjou came to Engalnd and made the barons recognise him as Stephens heir he eventually became Henry II.