But from deceit, bred by necessity;
For how can tyrants safely govern home
Unless abroad they purchase great alliance?
To prove him tyrant this reason may suffice,--
That Henry liveth still; but were he dead,
Yet here Prince Edward stands, King Henry's son.
Look therefore, Lewis, that by this league and marriage
Thou draw not on thy danger and dishonour;
For though usurpers sway the rule awhile,
Yet heavens are just, and time suppresseth wrongs.

WARWICK.
Injurious Margaret!

PRINCE.
And why not queen?

WARWICK.
Because thy father Henry did usurp,
And thou no more art prince than she is queen.

OXFORD.
Then Warwick disannuls great John of Gaunt,
Which did subdue the greatest part of Spain;
And, after John of Gaunt, Henry the Fourth,
Whose wisdom was a mirror to the wisest;
And, after that wise prince, Henry the Fifth,
Who by his prowess conquered all France.
From these our Henry lineally descends.