"he had been an Ogre, or the Dragon of Wantley"

“The Dragon of Wantley” is a poem by Thomas Percy (1729-1811), which was published in Reliques of Ancient Poetry (1767).

In the poem, which parodies the medieval romance, a child-eating dragon threatens Yorkshire, until it is slain by the knight, More of More Hall.

Old stories tell how Hercules
A dragon slew at Lerna,
With seven heads and fourteen eyes,
To see and well discern-a:
But he had a club, this dragon to drub,
Or he ne'er had done it, I warrant ye:
But More of More-hall, with nothing at all,
He slew the dragon of Wantley.

Full Poem