" Henry I was, as one contemporary chronicler put it, “the man against whom no one could prevail except God himself.” The fourth son of William the Conqueror, he enjoyed an exceptionally long, peaceful, and prosperous reign of thirty-five years, in which royal authority in England reached new heights. After his father’s death in 1087, England and Normandy had been split apart. Henry ruthlessly reunited them. "

― Dan Jones , The Plantagenets: The Warrior Kings and Queens Who Made England