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Events on Monday 17 August 1153 1
1130 – 1153Eustace IV of Boulogne (1130-1153)Died 17 August 1153, aged 23Eustace was the eldest son of King Stephen of England and had been designated his father's heir. His sudden death removed the main obstacle to a negotiated end of the Anarchy, clearing the way for the Treaty of Winchester. Stephen's younger son William did not pursue the throne.