Reign 5 August 1100 – 1 December 1135
Coronation 5 August 1100
Predecessor William II
Successor Stephen
Born c. 1068
Possibly Selby, Yorkshire
Died 1 December 1135 (aged 66–67)
Saint-Denis-en-Lyons, Normandy
Burial Reading Abbey
Spouse Matilda of Scotland (m. 1100; d. 1118)
Adeliza of Louvain(m. 1121)
Royal House Normandy
Father William I of England
Mother Matilda of Flanders

Henry I (c. 1068 – 1 December 1135), also known as Henry Beauclerc, was King of England from 1100 to his death. Henry was the fourth son of William the Conqueror and was educated in Latin and the liberal arts. On William's death in 1087, Henry's elder brothers Robert Curthose and William Rufus inherited Normandy and England, respectively, but Henry was left landless. Henry purchased the County of Cotentin in western Normandy from Robert, but William and Robert deposed him in 1091. Henry gradually rebuilt his power base in the Cotentin and allied himself with William against Robert. Henry was present when William died in a hunting accident in 1100, and he seized the English throne, promising at his coronation to correct many of William's less popular policies. Henry married Matilda of Scotland but continued to have a large number of mistresses by whom he had many illegitimate children.