The Faerie Queene ( Book 5.12) Edmund Spenser

CANTO XII

Artegall doth Sir Burbon aide,
And blames for changing shield:
He with the great Grantorto fights,
And slaieth him in field.

O Sacred hunger of ambitious mindes,
And impotent desire of men to raine,
Whom neither dread of God, that deuils bindes,
Nor lawes of men, that common weales containe,
Nor bands of nature, that wilde beastes restraine,
Can keepe from outrage, and from doing wrong,
Where they may hope a kingdome to obtaine.
No faith so firme, no trust can be so strong,
No loue so lasting then, that may enduren long.

Witnesse may Burbon be, whom all the bands,
Which may a Knight assure, had surely bound,
Vntill the loue of Lordship and of lands
Made him become most faithlesse and vnsound:
And witnesse be Gerioneo found,
Who for like cause faire Belge did oppresse,
And right and wrong most cruelly confound:
And so be now Grantorto, who no lesse
Then all the rest burst out to all outragiousnesse.