The horrid voice exclaims, "Your quarrel leave;
For 'twere a deed unjust and inhumane, That brother should of life his sister reave, Or sister by her brother's hand be slain.
Rogero and Marphisa mine, believe!
The tale which I deliver is not vain.
Seed of one father, on one womb ye lay;
And first together saw the light of day.
