(Frederic) Rudolph Lambart, 10th Earl of Cavan (1865-1946), Army commander

Sitter in 21 portraits
Cavan had retired from the army after seeing service in the Boer War, but was recalled in 1914 and established his reputation as a fighting commander at Ypres. In time he was regarded as the best British corps commander on the Western Front and in 1922 was appointed Chief of the Imperial General Staff.