Christina, maiden of heroic mien!
Star of the North! of northern stars the queen!
Behold, what wrinkles I have earn'd, and how
The iron cask still chafes my vet'ran brow,
While following fate's dark footsteps, I fulfill
The dictates of a hardy people's will.
But soften'd, in thy sight, my looks appear,
Not to all Queens or Kings alike severe.

William Cowper

http://www.poemhunter.com/poem/epigram-to-christina-queen-of-sweden-with-cromwell-s-picture-translation/