Henry I of England and Matilda were in Anjou supporting the rebels in their campaign against the royal army, which included a number of Matilda's supporters such as Robert of Gloucester. Many of these barons had taken an oath to stay in Normandy until the late king was properly buried, which prevented them from returning to England. The Norman nobility discussed declaring Theobald of Blois king. Theobald's younger brother, Stephen of Blois, quickly crossed from Boulogne to England, however, accompanied by his military household. With the help of his brother, Henry of Blois, he seized power in England and was crowned king on 22
Norman law of Normandy", originally "Summa de legibus Normanniae in curia laïcali") authored between 1235 and 1245. The Channel Islands remained part of the Duchy of Normandy until 1204 when King Philip II Augustus of France conquered the duchy from King John of England. The islands remained in the personal possession of the King of England and were described as being a Peculiar of the Crown. They retained the Norman customary law and developed it in parallel with continental Normandy and France, albeit with different evolutions. Norman law Norman law refers to the customary law of the Duchy of Normandy which developed