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
Henry I, Duke of Bavaria Henry I, Duke of Bavaria Henry I (919/921 – 1 November 955), a member of the German royal Ottonian dynasty, was Duke of Bavaria from 948 until his death. He was the second son of the German king Henry the Fowler and his wife Matilda of Ringelheim. After the death of his father, the royal title passed to Henry's elder brother Otto I, who immediately had to face the indignation of several Saxon nobles. Moreover, the late king's son from his first marriage, Thankmar, revolted in alliance with Duke Eberhard of Franconia and had young Henry captured and arrested. While