The work in which his Defence of Poetry occurs, the De Genealogia Deorum, was first suggested to Boccaccio while he was yet a young man, by Hugo, king of Cyprus. Hugo sent to the young poet, asking him to write a work upon the mythology of antiquity, there being no such book then in existence. Boccaccio seems to have been by no means eager for so tremendous a task, but urged on by his royal patron he at last began it, and continued to work on it at intervals, though the king who had originally set him the undertaking did not live to see its completion. Completed, indeed, it never really was, and it was without the author's knowledge and against his wishes that the manuscript passed out of his hands before it had undergone revision. This accounts in part for the desultory character of the work, its diffuseness, its repetitions, its lack of arrangement and subordination; only in part, of course, for something of all this—that, namely, which corresponds with the essentially undiscriminating, non-selective mind of the author himself—could not have been eliminated by any amount of revision.