First meeting of Mary Wollstonecraft and William Godwin.
Birth of Percy Bysshe Shelley.
1796Mary Wollstonecraft and William Godwin become lovers.
Marriage of Mary Wollstonecraft and William Godwin. Birth of their daughter Mary. Death of Mary Wollstonecraft shortly afterwards.
Godwin publishes a memoir of Mary Wollstonecraft and an edition of her posthumous works.
1810Shelley enters University College, Oxford.
Shelley publishes The Necessity of Atheism and is expelled from Oxford University. Soon afterwards he marries Harriet Westbrook.
1812Shelley meets William Godwin.
Shelley elopes with Mary Wollstonecraft Godwin. They tour the Continent (accompanied by Claire Clairmont, Mary's step-sister).
1816Shelley, Mary Shelley, Claire Clairmont and Lord Byron spend the summer by Lake Geneva. Mary conceives of Frankenstein.
1818Shelley and Mary leave England for Italy. Death of their daughter Clara, aged one.
Death of Shelley's and Mary's son William, aged three-and-a-half. Birth of their son Percy Florence.
Death of Claire Clairmont's and Lord Byron's daughter, Allegra, aged five. Shelley drowns off the Italian coast.
Mary Shelley returns to England with Percy Florence. A year later she published an edition of Shelley's posthumous works, withdrawn after Shelley's father Sir Timothy objects.
Death of William Godwin. Mary Shelley agreed to write his autobiography (never completed).
Mary Shelley publishes editions of Shelley's poetical works and prose.
1844Death of Sir Timothy Shelley. Percy Florence inherits the baronetcy.
1848Sir Percy Shelley marries Jane St. John (née Gibson).
Death of Mary Shelley. Sir Percy and Lady Shelley live at Boscombe Manor, near Bournemouth, where Lady Shelley creates a 'Sanctum' of the family manuscripts and relics.
Sir Percy and Lady Shelley privately print transcripts of the Shelley manuscripts as Shelley and Mary.
1889Death of Sir Percy Shelley.
1893Lady Shelley opens the Shelley Memorial, University College, Oxford. She gives one third of the family archive to the Bodleian Library, but forbids access to the correspondence until 1922. Selected items are put on public display in the Library.
1899Death of Lady Shelley. Bequeaths two thirds of the family archive to her husband's cousin John Shelley (later Sir John Shelley-Rolls). The final third she bequeaths to her two eldest grandsons (by adoption), Shelley Scarlett and Robert Scarlett, later the 5th and 6th Barons Abinger.
1946Sir John Shelley-Rolls gives the Bodleian the majority of his Shelley papers (including many of the poet's notebooks). The remainder reaches the Bodleian by his bequest after the death of his wife 1961.
1974The 8th Baron Abinger deposits his collection on loan at the Bodleian Library from 1974 to 1993.
2004The Bodleian Library purches the final part of the family archive (including the manuscripts of Frankenstein) from the 9th Baron Abinger.