Short answers, pulled from the story.
Percy Bysshe Shelley died on the 8th of July 1822 at age 29 when his boat, the Don Juan, was lost in a storm off the Italian coast near Livorno. His body washed ashore at Viareggio ten days later and was cremated on the beach on the 16th of August 1822. His ashes were buried in the Protestant Cemetery of Rome.
Shelley was expelled from University College, Oxford, on the 25th of March 1811 after he and Thomas Jefferson Hogg published The Necessity of Atheism and mailed it to every bishop and head of college at the university. When called before the Dean, George Rowley, Shelley refused to answer questions about whether he had authored the pamphlet, and both he and Hogg were expelled.
Shelley's best-known works include the sonnets "Ozymandias" (1818) and the poems "Ode to the West Wind" (1819) and "To a Skylark" (1820). His major long works include Prometheus Unbound (1820), The Mask of Anarchy (1819, published 1832), and Adonais (1821). He also wrote the verse drama The Cenci (1819), the only one of his works to receive two authorised editions in his lifetime.
Shelley was a radical who advocated Catholic emancipation, republicanism, parliamentary reform, an extension of the franchise, freedom of speech, and a more equal distribution of wealth. He was an avowed atheist who saw organised religion as linked to social oppression, and he championed nonviolent resistance. His poem "The Mask of Anarchy" has been called perhaps the first modern statement of the principle of nonviolent resistance, and it may have indirectly influenced Mahatma Gandhi.
Shelley was largely unread during his lifetime, with most of his work published in editions of two hundred and fifty copies that sold poorly. His radical political reputation slowed his mainstream acceptance, but his work gained readers in Owenist and Chartist circles and later influenced major poets including Robert Browning, Thomas Hardy, and W. B. Yeats. His critical reputation rose significantly from the 1960s onward, with Harold Bloom describing him as "a superb craftsman, a lyric poet without rival."
Shelley adopted a vegetable diet in early March 1812 and sustained it, with occasional lapses, for the rest of his life. He wrote two essays on the subject, A Vindication of Natural Diet (1813) and "On the Vegetable System of Diet" (written around 1813-1815, first published 1929). His life and work are credited with influencing the founding of the Vegetarian Society in England in 1847 and directly influenced the vegetarianism of George Bernard Shaw.