Stephen, King of England Robert of Gloucester rebelled against the King, starting the descent into civil war in England. An illegitimate son of Henry I and the half-brother of the Empress Matilda, Robert was one of the most powerful Anglo-Norman barons, controlling estates in Normandy as well as the Earldom of Gloucester. He was known for his qualities as a statesman, his military experience, and leadership ability. Robert had tried to convince Theobald to take the throne in 1135; he did not attend Stephen's first court in 1136 and it took several summons to convince him to attend court at Oxford later that year.
Norman conquest of England Anglia and Lincolnshire, but he was driven back to his ships by the brothers Edwin, Earl of Mercia, and Morcar, Earl of Northumbria. Deserted by most of his followers, Tostig withdrew to Scotland, where he spent the summer recruiting fresh forces. King Harold spent the summer on the south coast with a large army and fleet waiting for William to invade, but the bulk of his forces were militia who needed to harvest their crops, so on 8 September Harold dismissed them. King Harald Hardrada invaded northern England in early September, leading a fleet of more than 300 ships carrying