Robert William Heavener (28 February 1905 – 8 March 2005) was an Irish Anglican bishop and author. Among other works he wrote Co. Fermanagh: a short topographical and historical account (1940); Diskos (1970); Spare My Tortured People (1983), and Credo (1993); some or all of these were written under the pen nameRobert Cielou.[1][2]