Anthony Trollope 
The Prime Minister 

Despite his mysterious antecedents, an unscrupulous financial speculator, Ferdinand Lopez, aspires to marry into respectability and wealth and join the ranks of British society. One of the nineteenth century's most memorable outsiders, Lopez's story is set against that of the ultimate insider, Plantagenet Palliser, Duke of Omnium, who reluctantly accepts the highest office of state, becoming "the greatest man in the greatest country in the world."