Weep, daughter of a royal line,
A Sire's disgrace, a realm's decay;
Ah! happy if each tear of thine
Could wash a father's fault away!

Weep--for thy tears are Virtue's tears­
Auspicious to these suffering isles;
And be each drop in future years
Repaid thee by thy people's smiles!

George Gordon Byron

http://www.poemhunter.com/poem/lines-to-a-lady-weeping/