Henry rides to Winchester, where an argument ensues as to who now has the best claim to the throne.

William of Breteuil champions the rights of Robert, who is still abroad, returning from the Crusade, and to whom Henry and the barons had given homage in previous years.

Henry argues that, unlike Robert, he has been born to a reigning king and queen, thereby giving him a claim under the right of porphyrogeniture.

Tempers flare, but Henry, supported by Henry de Beaumont and Robert of Meulan, hold sway and persuade the barons to follow him.

He occupies Winchester Castle and seizes the royal treasury.