David I of Scotland only after Henry II ordered David's child successor Máel Coluim IV to hand over the most important of David's gains. It is clear that neither one of these interpretations can be taken without some weight being given to the other. Henry I had arranged his inheritance to pass to his daughter Empress Matilda. Instead, Stephen, younger brother of Theobald II, Count of Blois, seized the throne. David had been the first lay person to take the oath to uphold the succession of Matilda in 1127, and when Stephen was crowned on 22 December 1135, David decided to make war. Before
Henry I of England now had the best claim to the throne. William of Breteuil championed the rights of Robert, who was still abroad, returning from the Crusade, and to whom Henry and the barons had given homage in previous years. Henry argued that, unlike Robert, he had been born to a reigning king and queen, thereby giving him a claim under the right of porphyrogeniture. Tempers flared, but Henry, supported by Henry de Beaumont and Robert of Meulan, held sway and persuaded the barons to follow him. He occupied Winchester Castle and seized the royal treasury. Henry was hastily crowned king in Westminster