Sir Percy Florence Shelley was the son of the poet Percy Bysshe Shelley and the author Mary Wollstonecraft Godwin. His siblings William (1816-1819) and Clara (1817-1818) both died in infancy. He also had a half-sister Ianthe (1813-1876) and a half-brother Charles Bysshe (1814-44), the sons of his father's first wife Harriet Westbrook. On 22 June 1848 Percy Florence Shelley married Jane Gibson, the daughter of Thomas Gibson, and widow of the Hon. Charles Robert St. John. They had no children.
Percy F. Shelley has been described as a gentle and lovable man, who inherited his father's tastes and accomplishments. He became a baronet in 1844, following the death of his half-brother Charles Bysshe Shelley. At his own death in 1889 the baronetcy devolved to Edward, the son of his father's younger brother John.
Percy F. Shelley's home, Shelley House, in Chelsea Embankment, held a private theatre from 1881. JW's White House, designed by E. W. Godwin, and situated on Tite Street, was apparently next to his stables (#06163).
Dictionary of National Biography Online, Oxford, 1997; Dictionary of National Biography, Oxford, 2004.