IF chance some pensive stranger, hither led,
His bosom glowing from majestic views,
The gorgeous dome, or the proud landscape's hues,
Should ask who sleeps beneath this lowly bed --
'Tis poor Matilda! To the cloister'd scene,
A mourner, beauteous and unknown, she came,
To shed her tears unseen; and quench the flame
Of fruitless love: yet was her look serene
As the pale midnight on the moon-light isle --
Her voice was soft, which e'en a charm could lend,
Like that which spoke of a departed friend,
And a meek sadness sat upon her smile!
Now here remov'd from ev'ry human ill,
Her woes are buried, and her heart is still.

William Lisle Bowles

http://www.poemhunter.com/poem/xii-written-at-a-convent/