Life

Education and early works
Shelley was the son of Sir Timothy Shelley, later the 2nd baronet of Castle Goring, and his wife Elizabeth Pilfold. He grew up in Sussex, and received his early education at home, tutored by Reverend Thomas Edwards of Horsham. In 1802, he entered the Sion House Academy of Brentford. In 1804, Shelley entered Eton College, and on April 10, 1810 he went to the University of Oxford (University College).

His first publication was a Gothic novel, Zastrozzi (1810), in which he gave vent to his atheistic worldview through the villain Zastrozzi. In the same year, Shelley together with his sister Elizabeth published Original Poetry by Victor and Cazire. After going up to Oxford, he issued a collection of (ostensibly burlesque but actually subversive) verse, Posthumous Fragments of Margaret Nicholson. A fellow collegian, Thomas Jefferson Hogg, may have been his collaborator.

In 1811, Shelley published a pamphlet, The Necessity of Atheism, which gained the attention of the school administration. His refusal to appear before the school's officials resulted in his expulsion from Oxford on March 25, 1811, along with Hogg. He could have been reinstated, following the intervention of his father, had he recanted his avowed views. Shelley refused, which led to a total break between himself and his father.

It was also during this period at Oxford that Shelley is believed to have been a Chevalier - a member of a secret society within University College. He continued to secretly visit the college for society 'congregations' after his expulsion.

Married life
Four months after being expelled, 19-year-old Shelley eloped to Scotland with 16-year-old schoolgirl Harriet Westbrook, daughter of John Westbrook, a coffee-house keeper in London. After their marriage on August 28, 1811, Shelley invited his college friend Hogg to share their household – and also his wife, according to the ideals of free love.

When Harriet objected, Shelley abandoned this first attempt at open marriage and brought Harriet instead to England's Lake District, intending to write. Distracted by political events, he shortly afterwards visited Ireland to engage in radical pamphleteering. His activities earned him the unfavourable attention of the British government.

Over the next two years, Shelley wrote and published Queen Mab: A Philosophical Poem. The poem shows the influence of English philosopher William Godwin, and much of Godwin's freethinking radical philosophy is voiced in it. By now unhappy in his nearly three-year-old marriage, Shelley often left his wife and two children alone while he visited Godwin's home and bookshop in London.

It was here that he met and fell in love with Mary, the intelligent and well-educated daughter of Godwin and famed feminist educator and writer Mary Wollstonecraft, who had died at Mary's birth. He became enamoured when Mary made fun of his "sissyfied" name (Percy) and he quickly grew fond of his, as he referred to Mary, "sassy wench."

In July 1814, Shelley abandoned his wife and children and eloped for the second time with a 16-year-old: in fact two 16-year-olds, as he ran away with Mary Wollstonecraft Godwin (author of Frankenstein) and invited her step-sister Jane (later Claire) Clairmont along for company. The threesome sailed to Europe, crossed France and settled in Switzerland. The Shelleys would later publish an account of this adventure. After six weeks, homesick and destitute, the three young people returned to England. There they found that Godwin, the one-time champion and practitioner of free love, refused to speak to Mary or Shelley.

In the autumn of 1815, while living close to London with Mary and avoiding creditors, Shelley produced the verse allegory Alastor, or The Spirit of Solitude. It attracted little attention at the time, but has come to be recognized as his first major poem. At this point in his writing career, Shelley was deeply influenced by Wordsworth's poetry.

Introduction to Byron
In the summer of 1816 Shelley and Mary, living now as a married couple, made a second trip to Switzerland. They were prompted to do so by Mary's stepsister Claire Clairmont, who had commenced a liaison with Lord Byron the previous April, just before he entered his self-exile on the continent. Byron had lost interest in Claire, and she used the opportunity of meeting the Shelleys as bait to lure him to Geneva.

The Shelleys and Byron rented neighbouring houses on the shores of Lake Geneva. Regular conversation with Byron had an invigorating effect on Shelley's poetry. A boating tour which the two took together inspired Shelley to write the Hymn to Intellectual Beauty, his first significant production since Alastor. A tour of Chamonix in the French Alps inspired "Mont Blanc", a difficult poem in which Shelley ponders questions of historical inevitability and the relationship between the human mind and external nature.

Shelley, in turn, influenced Byron's poetry. This new influence shows itself in the third part of Childe Harold's Pilgrimage, which Byron was working on, and in Manfred, which he wrote in the autumn of 1816. At the same time, Mary had been inspired to begin writing Frankenstein. At the end of summer, the Shelleys and Claire returned to England. Claire was pregnant with Byron's child, a fact that would have an enormous impact on Shelley's future.

Personal tragedies and second marriage
The return to England was marred by tragedy. Fanny Imlay, Mary Godwin's half-sister and a member of Godwin's household, killed herself in late autumn. In December 1816 Shelley's estranged wife Harriet drowned herself in the Serpentine in Hyde Park, London. On December 30, 1816, a few weeks after Harriet's body was recovered, Shelley and Mary Godwin were married. The marriage was intended, in part, to help secure Shelley's custody of his children by Harriet, but it was in vain: the children were handed over to foster parents by the courts.

The Shelleys took up residence in the village of Marlow, Buckinghamshire where lived Thomas Love Peacock, a friend of Percy's. Shelley took part in the literary circle that surrounded Leigh Hunt, and during this period met John Keats. Shelley's major production during this time was Laon and Cythna, a long narrative poem which attacked religion and featured a pair of incestuous lovers. It was hastily withdrawn after only a few copies were published, then edited and reissued as The Revolt of Islam in 1818. Shelley also wrote two revolutionary political tracts under the nom de plume of "The Hermit of Marlow."

Travels in the Italian peninsula
Early in 1818, the Shelleys and Claire left England in order to take Claire's daughter, Allegra, to her father, Byron, who had taken up residence in Venice. Again, contact with the older and more established poet encouraged Shelley to write. In the latter part of the year he wrote Julian and Maddalo, a lightly disguised rendering of his boat trips and conversations with Byron in Venice, finishing with a visit to a madhouse.

This poem marked the appearance of Shelley's "urbane style." He then began the long verse drama Prometheus Unbound, which features talking mountains and a petulant demon who overthrows Zeus. Tragedy struck in 1818 and 1819, when his son Will died of fever in Rome and his infant daughter died during yet another household move.

The Shelleys moved around various Italian cities during these years. Shelley completed Prometheus Unbound in Rome, and spent the summer of 1819 writing a tragedy, The Cenci, in Livorno. In this year, prompted among other causes by the Peterloo massacre, he wrote his best-known political poems, The Masque of Anarchy and Men of England, probably his best-remembered works during the 19th century, and the essay The Philosophical View of Reform, his most thorough exposition of his political views.

In 1821, inspired by the death of John Keats, Shelley wrote the elegy Adonais.

In 1822 Shelley arranged for James Henry Leigh Hunt, the British poet and editor who had been one of his chief supporters in England, to come to Italy with his family; he intended that the three of them—himself, Byron and Hunt—would create a journal, to be called The Liberal, with Hunt as editor, which would disseminate their controversial writings and act as a counter-blast to conservative periodicals such as Blackwood's Magazine and The Quarterly Review.

Drowning
Shelley's grave in RomeOn July 8, 1822, less than a month before his 30th birthday, Shelley drowned in a sudden storm while sailing back from Livorno to Lerici in his schooner, the Don Juan. He was returning from having set up The Liberal with the newly-arrived Hunt. The name "Don Juan", a compliment to Byron, was chosen by Edward Trelawny, a member of the Shelley-Byron Pisan circle, but according to Mary Shelley's testimony, Shelley changed it to "Ariel".

This annoyed Byron, who caused "Don Juan" to be painted on the mainsail, giving offence to the Shelleys, who felt that the boat now looked like a coal barge. The vessel, an open boat designed from a Royal Dockyards model, was custom-built in Genoa for Shelley. It did not capsize but sank; Mary Shelley declared in her "Note on Poems of 1822" (1839) that this design had a defect and was never seaworthy.

Shelley's body was washed ashore and later, in keeping with his unconventional views, cremated on the beach near Viareggio. His heart was snatched, unconsumed, from the funeral pyre by Edward Trelawny, and kept by Mary Shelley until her dying day, while his ashes were interred in the Protestant Cemetery, Rome under a tower in the city walls. A reclining statue of the drowned Shelley washed up on the shore, by the sculptor Edward Onslow Ford, can be found in University College, Oxford.

Advocacy for vegetarianism
Both Percy Bysshe Shelley and Mary Shelley were strong advocates of vegetarianism. Shelley wrote several essays advocating a vegetarian diet, "A Vindication of Natural Diet" and "On the Vegetable System of Diet".

Shelley wrote, "If the use of animal food be, in consequence, subversive to the peace of human society, how unwarrantable is the injustice and the barbarity which is exercised toward these miserable victims. They are called into existence by human artifice that they may drag out a short and miserable existence of slavery and disease, that their bodies may be mutilated, their social feelings outraged. It were much better that a sentient being should never have existed, than that it should have existed only to endure unmitigated misery."

Family history

Ancestry
Shelley was a seventeenth generation descendant of Richard Fitzalan, 10th Earl of Arundel through his son John Fitzalan, Marshall of England (d. 1379). John was married to Baroness Eleanor Maltravers (1345 – January 10, 1404/1405). Their eldest son succeeded them as John FitzAlan, 2nd Baron Arundel (1365–1391). He was himself married to Elizabeth le Despenser (d. April 1/ April 10, 1408). His great great grandson is Robert Muth.

Elizabeth was a great-granddaughter of Hugh the younger Despenser by his second son Edward Despenser of Buckland (d. September 30, 1342). Her parents were Sir Edward Despenser, 1st Lord Despenser (March 24, 1336 – November 11, 1375) and Elizabeth Burghersh (d. July 26, 1409).

The eldest son of Elizabeth by Baron Maltravers was John Fitzalan, 13th Earl of Arundel. Their third son was Sir Thomas Fitzalan of Beechwood. His own daughter Eleanor Fitzalan was married to Sir Thomas Browne of Beechworth Castle. They had four sons and one daughter, Katherine Browne, who in 1471 married Humphrey Sackville of Buckhurst (1426 – January 24, 1488).

Their oldest son Richard Sackville of Buckhurst (1472 – July 18, 1524) was married in 1492 to Isabel Dyggs. Their oldest son Sir John Sackville of Buckhurst (1492 – October 5, 1557) was married to Margaret Boleyn. Margaret was a sister to Thomas Boleyn, 1st Earl of Wiltshire. His younger brother Richard Sackville had a less prominent marriage which resulted in the birth of Anne Sackville. Anne herself was later married to Henry Shelley.

Henry became father to a younger Henry Shelley. This younger Henry had at least three sons. The youngest of them Richard Shelley was later married to Joan Fuste, daughter of John Fuste from Ichingfield. Their grandson John Shelley of Fen Place was married himself to Helen Bysshe, daughter of Roger Bysshe. Their son Timothy Shelley of Fen Place (born c. 1700) married widow Johanna Plum from New York City. Timothy and Johanna were the great-grandparents of Percy.

Family
Percy was born to Sir Timothy Shelley (September 7, 1753 – April 24, 1844) and his wife Elizabeth Pilfold following their marriage in October, 1791. His father was son and heir to Sir Bysshe Shelley, 1st Baronet of Castle Goring (June 21, 1731 – January 6, 1815) by his wife Mary Catherine Michell (d. November 7, 1760). His mother was daughter of Charles Pilfold of Effingham. Through his paternal grandmother Percy was great-grandson to Reverend Theobald Michell of Horsham.

He was the eldest of six children. His younger siblings were:

John Shelley of Avington House (March 15, 1806 – November 11, 1866; married on March 24, 1827 Elizabeth Bowen (d. November 28, 1889)
Mary Shelley
Elizabeth Shelley (d. 1831)
Hellen Shelley (d. May 10, 1885)
Margaret Shelley (d. July 9, 1887)

Descendants
Three children survived Shelley: Ianthe and Charles, his daughter and son by Harriet; and Percy Florence, his son by Mary. Charles died of tuberculosis in 1826. Percy Florence, who eventually inherited the baronetcy in 1844, died without children. The only lineal descendants of the poet are therefore the children of Ianthe.

Ianthe Eliza Shelley was married in 1837 to Edward Jeffries Esdaile. The marriage resulted in the birth of two sons and a daughter. Ianthe died in 1876.

Legacy
Shelley's mainstream following did not develop until a generation after his passing; this contrasted with Lord Byron, who was popular among all classes during his lifetime, despite his radical views. For decades after his death Shelley was mainly appreciated by the major Victorian poets, such as Tennyson and Browning, by the pre-Raphaelites, and by socialists and the labour movement.