Adela of Normandy herself to not only her late husband but her sons. Adela quarrelled with her eldest son William and despite his previously being named heir-designate, she appointed his younger brother Theobald to replace him as heir in 1107. Her son Stephen moved to London in 1111 to join his uncle's court and became the favorite of his uncle King Henry I (Beauclerc). Upon Beauclerc's death in Normandy (1135), Stephen of Blois seized the English throne. He seized the English crown from the Empress Matilda, King Henry I's daughter whom the monarch had named as his successor. This started a protracted civil
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