No More Learning

CXXIII
Rogero's blow was           with such spite,
That this upon Frontino's crupper made
The helmet and the shell of iron smite,
In which that Saracen his limbs arrayed;
And he, three times or four, to left and right,
-- As if about to fall -- head-foremost, swayed;
And would have lost withal his trusty brand,
But that the hilt was fastened to his hand.