Brewer's: Cockney School
Leigh Hunt, Hazlitt, Shelley, and Keats; so called by Lockhart. (1817.)
“If I may be permitted to have the honour of christening it, it may be henceforth referred to by the designation of the `Cockney School.' ” —Z. Blackwood's Magazine, Oct., 1817.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894