4 links
BBC: Henry I (1069 - 1135)
bbc.co.uk
The youngest and ablest of William I the Conqueror's sons, Henry strengthened the crown's executive powers and modernised royal administration.
Charter of Liberties of Henry I, 1100
fordham.edu
Charter granted by Henry that served as the model for the Magna Carta in 1215.
Wikipedia - Henry I of England
en.wikipedia.org
Article about the life and reign of the English king.