His sparkling blade about his head he blest,
And smote off quite his right leg by the knee,
That downe he tombled; as an aged tree,
High growing on the top of rocky clift,
Whose hartstrings with keene steele nigh hewen be,
The mightie trunck halfe rent, with ragged rift
Doth roll adowne the rocks, and fall with fearefull drift.
Or as a Castle reared high and round, xxiii
By subtile engins and malitious slight
Is vndermined from the lowest ground,