A name bestowed by Waller on Lady Dorothea Sidney, eldest daughter of the Earl of Leicester, for whose hand he was an unsuccessful suitor, for she married the Earl of Sunderland.
“The Earl of Leicester, father of Algernon Sidney, the patriot, and of Waller's Saccharissa built for himself a stately house at the north corner of a square plot of `Lammas land' belonging to the parish of St. Martin's, which plot henceforth became known to Londoners as `Leicester Fields.' ” —Cassell's Magazine: London Legends, ii.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894
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