Pyramid of Cestius an essential sight for many who undertook the Grand Tour in the 18th and 19th centuries. It was much admired by architects, becoming the primary model for pyramids built in the West during this period. Percy Bysshe Shelley described it as "one keen pyramid with wedge sublime" in "Adonaïs", his 1821 elegy for John Keats. In turn the English novelist and poet Thomas Hardy saw the pyramid during a visit to the nearby Protestant Cemetery in 1887 and was inspired to write a poem, "Rome: At the Pyramid of Cestius near the Graves of Shelley and Keats", in which he
Prometheus Unbound (Shelley) until his death on 8 July 1822. After his death, Timothy Shelley, his father, refused to allow Mary Shelley to publish any of Shelley's poems, which kept any immediate corrected editions of the play from being printed. Although reluctant to help the Parisian publishers A. and W. Galignani with an edition of Shelley's works, she eventually sent an "Errata" in January 1829. The Galignanis relied on most of her punctuation changes, but only a few of her spelling changes. The next critical edition was not released until 1839, when Mary Shelley produced her own edition of Shelley's work for Edward