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
Napoleon I on His Imperial Throne developments." The Louvre, newly filled with booty seized by Napoleon in his campaigns in Belgium, the Netherlands, and Italy, provided French artists of the early nineteenth century with an unprecedented opportunity to study, compare, and copy masterworks from antiquity and from the entire history of European painting. From the beginning of his career, Ingres freely borrowed from earlier art, adopting the historical style appropriate to his subject, leading critics to charge him with plundering the past. Napoleon I on His Imperial Throne Napoleon I on his Imperial Throne () is an 1806 portrait of Napoleon I of France in his