Fergus of Galloway married to David's older sister, Edith (died 1118), a union which closely bound him to the Scottish royal house. For as long as Henry I lived, relations between him and David remained harmonious. When the former died in 1135, however, the peace between the neighbouring realms was shattered when his nephew, Stephen of Blois, Count of Boulogne and Mortain (died 1154), successfully seized the throne. Before the end of the year, the Scots surged forth and seized Carlisle and Cumberland before peace was restored. Relations broke down the following year, and the Scots again invaded in 1137, seizing Northumberland, and
Succession of Henry IV of France view, Henry remained a heretic and, therefore, an usurper on the throne of France. On the death of King Henry III of France, who had no son, the crown passed to Henry IV, in application of Salic law, because Henry was the descendant of the eldest surviving male line of the Capetian dynasty. Henry IV's descent in the male line from Louis IX of France. Succession of Henry IV of France Henry IV of France's succession to the throne in 1589 was followed by a four-year war of succession to establish his legitimacy. This was part of the French Wars