1087: William's Death and Anglo-Norman Division

In 1087, William the Conqueror dies. For Philip I, this is a turning point: Anglo-Norman power does not disappear, but it ceases to be a perfectly united bloc.

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👑 A Divided Inheritance

The complex built by William is divided:

• Robert Curthose receives Normandy;
• William Rufus receives England.

This division temporarily weakens the adversary: rivalries between brothers, different priorities, and risks of succession conflict.

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📌 An Imperfectly Exploited Opportunity

For the king of France, the division is an opening: support opponents, arbitrate, and prevent the reconstitution of a single hegemony. Yet Philip does not fully turn the situation into decisive gains: his power remains limited, and his action stays cautious, indirect, and often dependent on local balances of power.

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🧠 Key Takeaways

• 1087 temporarily weakens the Anglo-Norman bloc through succession division.
• Philip benefits from it mainly through diplomacy and counterweight politics, without decisive victory.