Battle of Wilton Boulogne to England and claimed the throne. He quickly gained the support of London's magnates and the church, and seized control of the treasury at Winchester. He was crowned king on 22 December 1135. By 1138, Matilda had gathered enough support to challenge Stephen for the throne. Her supporters were led by her half-brother Robert Earl of Gloucester. The ensuing civil war lasted until 6 November 1153 when, by the Treaty of Wallingford, Stephen recognised Matilda's son Henry as heir to the throne. By 1142 both sides had become cautious of risking open battle, and the civil war became a
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