John Keats was an English poet, one of the key figures in the second generation of the Romantic movement.
 

"Out went the taper when she hurried in;
Its little smoke, in pallid moonshine, died:
She clos’d the door, she panted, all akin
To spirits of the air, and visions wide:
No uttered syllable, or, woe betide!
But to her heart, her heart was voluble,
Paining with eloquence her balmy side;
As though a tongueless nightingale should swell
Her throat in vain, and die, heart stifled, in her dell.

 
A casement high and triple-arch’d there was,
All garlanded with carven imag’ries
Of fruits, and flowers, and bunches of knot-grass,
And diamonded with panes of quaint device,
Innumerable of stains and splendid dyes,
As are the tiger-moth’s deep-damask’d wings;
And in the midst, ‘mong thousand heraldries,
And twilight saints, and dim emblazonings,
A shielded scutcheon blush’d with blood of queens and kings."

– from The Eve of St. Agnes