This is the first full biography ever written of Adolphus Frederick, Duke of Cambridge, youngest and, arguably, favorite son of King George III. It is the thesis of this biography that of the seven surviving sons, Adolphus was most successful at internalizing the kings concept of royal duty, which enabled him to live a purposeful and productive life in a time of immense technological, political, and social change. It documents a multitude of facts long buried in archives and newspapers. Includes many illustrations.