Red Book of Bath
15th century

But for he skaped that batell y-wys
Bretons and Cornysh sayeth thus
That he levyth yet, pardi,
And schall come and be a kyng aye.

At Glastonbury on the queer
They made Artourez toumbe there,
And wrote with latyn verse thus
Hic jacet Arturus, rex quondam, rex futurus.