Eustace IV, Count of Boulogne now lost, as a consequence of the Dissolution of the Monasteries. Eustace IV, Count of Boulogne Eustace IV (c. 1127–1135 – 17 August 1153), Count of Boulogne, was the eldest son of King Stephen of England and Countess Matilda I of Boulogne. When his father seized the English throne on Henry I's death in 1135, he became heir apparent to the English throne. Upon his mother's death in 1152 he inherited the county of Boulogne and other estates. Eustace was first mentioned in one of his parents' charters dated no later than August 1131. As heir to the English throne
Sussex in the High Middle Ages England was unsuccessful. Following charges against Robert de Bellême around his support for the failed invasion of Robert Curthose, Robert de Bellême fortified Arundel Castle around 1101. This led to forces of Henry I besieging Arundel Castle in 1102 for 3 months, building siege castles in the vicinity of Arundel including probably at Warningcamp and perhaps Ford. Henry I's forces confiscated the castle and held it himself. As the second wife of Henry I Adeliza of Louvain was Queen of England from 1121 until Henry's death in 1135. On their marriage in 1121 Henry gave Adeliza the city of Chichester