This is the title of a poem by Lord Byron, the first verse of which appears in the picture: In case you can't read it it says - When we two parted In silence and tears, Half broken hearted To sever the years, Pale grew thy cheek and cold, Colder, thy kiss: Truly that hour foretold Sorrow to this. This just cried out forbidden love - elven and human. He was a knight, hence the sword on the shield at the bottom. She a high born elf, unable to free herself from her duties to her people, hence the key (locked in!?) This is a monument to them both.