[Exeunt.
Scene II.—A Room in the Palace.
Enter King.
King. Don Mendo comes not back, and must not come,
Till he have done his errand. I myself
Can have no rest till justice have her due.
A son to strike his father in my realm
Unawed, and then unpunisht!
But by great Heaven the law shall be avenged
So long as I shall reign in Arragon.