Research has shown that this person never existed. See the text for details.
Biography
Mr. Cleveland is the protaganist of a novel by Abbé Prévost, originally published in French during 1731.[1] It characterizes Cleveland as a natural son of Oliver Cromwell and Elizabeth Cleveland,[2] with a wife called the daughter of a Lord Axminster.[2] Some seem to think there is some truth in it, since the novel belongs to the genre of historical fiction.[3][4]
While Prevost's character has no given name, some seem to correlate him with an Alexander Cleveland or the American immigrant Roger Cleveland, who married a woman named Dorcas.[3]
The Life and Entertaining Adventures of Mr. Cleveland, Natural Son of Oliver Cromwell, 2nd ed, I, pp. vi. London: T. Astley. Archive.org.; Cleveland Family Chronicles. Web.[1]