|A copy of the Coronation Charter of Henry I/Charter of Liberties|
The Charter of Liberties is also known as the Coronation Charter. It is the earliest extant coronation charter from England. In it, the new king makes promises to uphold laws. The statements made in this particular Charter were popular because they undid many of the acts of William that were unpopular.
For instance, statement 1 promises that Henry "shall not take or sell any property from a Church upon the death of a bishop or abbot, until a successor has been named to that Church property." (William had left the position of Archbishop of Canterbury lie vacant after the death of Lanfranc, so that he could appropriate the revenue from the archbishop's lands.)
Statement 6 forgives "all debts and pleas which were owing to my brother, except those which were lawfully made through an inheritance."
Statement 8 reverses the practice of being forced to bribe the king: "If any of my barons commit a crime, he shall not bind himself to the crown with a payment as was done in the time of my father and brother, but shall stand for the crime as was custom and law before the time of my father, and make amends as are appropriate."
Other statements put more control in the hands of the barons, and promise that the Crown shall not act rashly. When Robert Curthose went on the First Crusade, William gave him 10,000 marks—the equivalent of 25% of the annual royal budget. William got this money from a very heavy tax levied on the whole of England.
Even though in the normal course of events Henry would not have been part of the succession, the Charter of Liberties presented at his coronation helped to "sell" him to the noble class.