Revenge for Honour is a Caroline tragedy, printed posthumously in 1654 and presumably written by Henry Glapthorne (1610-1643).
An opportunity arises when Mesithes the eunuch divulges to Abrahen that his brother cuckolds Mura.
Abrahen warns Caropia of her husband's frantic jealousy, suggesting she should accuse Abilqualit of rape.
Later, Abrahen appeases Mura by telling him he will obtain revenge by his father, the caliph, as the punishment of adultery in Arabia is blinding.
When informed of his son's deed, Tarifa attempts to dissuade Almanzor, the caliph, from this harsh punishment.
Mura asks but justice: "The sun himself, when he darts rays lascivious,/Such as engender by too piercing fervence/Intemperate and infectious heats, straight wears/Obscurity from the clouds his own beams raises."
Angry at this intrusion, Almanzor cries out to his son and then to his servants: "Have you your champions?/We will prevent their insolence; you shall not/Boast you have got the empire by our ruin:/Mutes, strangle him immediately."
Competition between family members, especially brothers, is an important characteristic of the tragedies of Jean Racine, notably La Thébaïde (1664, The Thebans).