Doctor Thorne (1858) is the third novel in Anthony Trollope's series known as the Chronicles of Barsetshire. The idea of the plot was suggested to Trollope by his brother Thomas. It is mainly concerned with the romantic problems of Mary Thorne, niece of Doctor Thomas Thorne (a member of a junior branch of the family of Mr Wilfred Thorne, who appeared in Barchester Towers), and Frank Gresham, the only son of the local squire, although Trollope as the omniscient narrator assures the reader at the beginning that the hero is really the doctor.