http://en.wikipedia.org/wiki/Percy_Bysshe_Shelley
Four months after being expelled, the 19-year-old Shelley travelled to Scotland with the 16-year-old schoolgirl Harriet Westbrook to get married. After their marriage on 28 August 1811, Shelley invited his college friend Hogg to share their household. When Harriet objected, however, Shelley brought her to Keswick in England's Lake District, intending to write.
Unhappy in his nearly three-year-old marriage, Shelley often left his wife and child (Ianthe Shelley, 1813-76) alone, first to study Italian with a certain Cornelia Turner, and eventually to visit William Godwin's home and bookshop in London, where he met Godwin's daughter, Mary Wollstonecraft Godwin, later known as Mary Shelley. Mary was the daughter of Mary Wollstonecraft, the author of A Vindication of the Rights of Women.
On 28 July 1814, Shelley abandoned his pregnant wife and child when he ran away with Mary, also inviting her stepsister Jane (later Claire) Clairmont along for company. The three sailed to Europe, crossed France, and settled in Switzerland, an account of which was subsequently published by the Shelleys. After six weeks, homesick and destitute, the three young people returned to England.
...
In December 1816, Shelley's estranged wife Harriet drowned herself in the Serpentine in Hyde Park, London. On 30 December 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 the plan failed: the courts gave custody of the children to foster parents due to the fact that he was an atheist.
Mary Godwin was 16 when she started having an affair with Shelley.
After Shelley eloped to Switzerland with Mary Godwin and her stepsister, he still went back to his lawful wife Harriet several times.
A daughter, Elena Adelaide Shelley, was born 27 December 1818 in Naples, Italy and registered there as the daughter of Shelley and a woman named Marina Padurin. However, the identity of the mother is an unsolved mystery. Some scholars speculate that her true mother was actually Claire Clairmont or Elise Foggi, a nursemaid for the Shelley family. Other scholars postulate that she was a foundling Shelley adopted in hopes of distracting Mary after the deaths of William and Clara.
文学男青年很容易勾引到文学女生的,简直是桶里杀鱼么。