Than gentleman can bear, and in the scuffle
Receives a blow that in his son’s blind rage
Was aim’d abroad—in the first heat of passion
Throws himself at your feet, and calls for vengeance,
Which, as I hear, he now repents him of.
He’s old and testy—age’s common fault—
And, were not this enough to lame swift justice,
There’s an old law in Arragon, my liege,
That in our courts father and son shall not
Be heard in evidence against each other;