[@Ogobrogo] After 10 minutes of listening to English and French folk songs, I came up with this. (Though I'm not too sure on the tune itself)

[hider]

Land of the Skies
Hope brought by the Sunrise
Ne'er shall the kingdom fade
For the Crystal comes to our aid! 

Crystal Save the King!
Crystal Save the King!

Oh, never shall our sight
Be dimmed by tyrants' might
For the Good-King Roderick
Has been blessed by Crystal's light

Crystal Save the King!
Crystal Save the King!

Though the dark floods the world
Our flags remain unfurled
Oh, let us celebrate
For the Warriors of Light protect our fate

Crystal Save the King!
[/hider]

Perhaps this is more a poem than a song. Then again, composers set famous poems to their pieces to make songs before.