I am not meet for petty men, the book a boss:
They saw not Arthur's virtue beyond the Fort of Glasses.
Three score centuries of men stationed on the wall:
to speak with its sentinel was not easy.
Three fulnesses of Prydwen we went with Arthur,
Save for seven none came up from Fort Hindrance.

Book of Taliesin (c. 1275?) - The Spoils of Annwn