Accepted instances include a brief take-off on Christina Rossetti's long poem "Goblin Market" (the complete text is of course included), a free-verse meditation dovetailing with the "Holy Sonnet XIV" by John Donne, and an English-language invention on Catullus' erotic poem "Number 51" (submitted in the original Latin), itself inspired by Sappho's Ancient Greek (Aeolic) fragment Sappho 31.
Sappho 31 was one of the two substantially complete poems by Sappho to survive from ancient times, written in Sappho's vernacular form of Greek, the Lesbian-Aeolic dialect.