Before concluding his lyrical drama, Prometheus Unbound (see separate entry) Shelley turned his attention, between May and August 1819, to writing a tragic play entitled The Cenci. Unexpectedly, Shelley suspended composition of his drama when his son, William, was afflicted with a stomach infection that precipitated in the young boy's death on 7 June 1819. Shelley did not recommence authoring The Cenci until late June or early July but, certainly, by August his tragedy was being transcribed for the press and Glauco Masi, a Leghorn printer, had by 21 September 1819 produced 250 copies of the play in readiness for shipping to England.
Originally, Shelley harboured aspirations that his tragedy would be …
Sandy, Mark. "The Cenci". The Literary Encyclopedia. First published 25 August 2004
[https://www.litencyc.com/php/sworks.php?rec=true&UID=1290, accessed 16 January 2018.]