Another Author of "Factional" Historical Novels springs to mind. Walter Macken wrote a trilogy on Irish History also. His titles are (Hope my memory is good) "The Scorching Wind", Seek the Fair Land" and one other the name of which I cannot recall. The famous "Strumpet City" by James Stephens would qualify too and, finally, I believe that "Thy Tears Might Cease" by Ml. Farrell (reprinted 1987) is a very good read in the same genre.