What secrets the window holds

Etched into the soft Jacobean glass of a window in Eyam Hall, Derbyshire is this prose.
“Fanny, ye pride of natures beauteous powers
Her sexes Envy, and ye Pride of Ours,
Regardless triumphs in a world of Charms,
Wins ev’ry Eye and ev’ry heart alarms.
Whenever she sings ’tis heaven to be near,
Words sweet as honey charm ye ravish’d Ear.
We stand attentive to her tuneful tongue,
As wondering Syrens when a Sapho Sung.”
R.W.