In between Ronald Firbank and Piers Anthony who is most famous for his set in the fictional realm of Xanth?
Ronald Firbank Arthur Annesley Ronald Firbank (17 January 1886 – 21 May 1926) was an innovative English novelist. His eight short novels, partly inspired by the London aesthetes of the 1890s, especially Oscar Wilde, consist largely of dialogue, with references to religion, social-climbing, and sexuality.
Guy Gavriel Kay Guy Gavriel Kay {'1': ", '2': ", '3': ", '4': "} (born November 7, 1954) is a Canadian writer of fantasy fiction. Many of his novels are set in fictional realms that resemble real places during real historical periods, such as Constantinople during the reign of Justinian I or Spain during the time of El Cid. Those works are published and marketed as historical fantasy, although Kay has expressed a preference to avoid genre categorization.