Who wrote Charles dickens epitaph?

Charles Dickens' epitaph was written by his friend Sir Edward Bulwer-Lytton. It reads: "To the Memory of Charles Dickens (England's most popular author) who died at his residence, Higham, near Rochester, Kent, 9 June 1870, aged 58 years. He was a sympathizer with the poor, the suffering, and the oppressed; and by his death, one of England's greatest writers is lost to the world."