1. The offsprings of William the Conqueror

2. William the Conqueror William II Rufus Robert II Corthose
Henry I of England

3. Robert II Corthose
Robert Curthose or Robert II (c or 1054–10 February 1134) was the Duke of Normandy from 1087 until 1106 and an unsuccessful claimant to the throne of the Kingdom of England. His nickname, Curthose, comes from the Norman French Courtheuse, meaning short stockings.

4. In 1087, the Conqueror died. At his death, he reportedly wanted to disinherit his eldest son, but was persuaded to divide the Norman dominions between his two eldest sons. To Robert, he granted only the Duchy of Normandy. Robert was considered to be much the weaker and was generally preferred by the nobles who held lands on both sides of the English Channel. At the time of their father's death, the two brothers made an agreement to be each other's heir. However, this peace lasted less than a year when barons joined with Robert to displace Rufus in the Rebellion of It was not a success, because Robert never showed up to support the English rebels

5. William II Rufus
William II (c – 2 August 1100), the third son of William I "the Conqueror" of England, was King of England from 1087 until 1100, with powers also over Normandy, and influence in Scotland. He was less successful in extending control into Wales. William is commonly known as William Rufus, perhaps because of his red-faced appearance.

6. The division of William the Conqueror's lands into two parts presented a dilemma for those nobles who held land on both sides of the Channel. These nobles worried that they could not hope to please both of their lords, and thus ran the risk of losing the favour of one ruler or the other, or both. The only solution was to unite England and Normandy once more under one ruler. The pursuit of this aim led them to revolt against William in favour of Robert in the Rebellion of As Robert failed to appear in England to rally his supporters, William won the support of the English with silver and promises of better government, and defeated the rebellion

7. Henry I of England
Henry I (c. 1068/1069 – 1 December 1135) was the fourth son of William I the Conqueror. He succeeded his elder brother William II as King of England in 1100 and defeated his eldest brother, Robert Curthose, to become Duke of Normandy in He was called Beauclerc for his scholarly interests and Lion of Justice for refinements which he brought about in the administrative and legislative machinery of the time.

8. Henry's reign is noted for its political opportunism
Henry's reign is noted for its political opportunism. His succession was confirmed while his brother Robert was away on the First Crusade and the beginning of his reign was occupied by wars with Robert for control of England and Normandy. He successfully reunited the two realms again after their separation on his father's death in Upon his succession he granted the baronage a Charter of Liberties, which formed a basis for subsequent challenges to rights of kings and presaged Magna Carta, which subjected the King to law.
The rest of Henry's reign was filled with judicial and financial reforms. The differences between the English and Norman populations began to break down during his reign and he himself married a daughter of the old English royal house. He made peace with the church after the disputes of his brother's reign, but he could not smooth out his succession after the disastrous loss of his eldest son William in the wreck of the White Ship. His will stipulated that he was to be succeeded by his daughter, the Empress Matilda, but his stern rule was followed by a period of civil war known as the Anarchy.

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