Stephen, King of England also risen to power under Henry I. Henry of Blois had become a Cluniac monk and followed Stephen to England, where the King made him Abbot of Glastonbury, the richest abbey in England. The King then appointed him Bishop of Winchester, one of the richest bishoprics, allowing him to retain Glastonbury as well. The combined revenues of the two positions made Henry of Winchester the second-richest man in England after the King. Henry of Winchester was keen to reverse what he perceived as encroachment by the Norman kings on the rights of the church. The Norman kings had traditionally exercised
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.