"Yet once before -- nor is it long ago-- Twixt us in battle was this question tried:
But I that day restrained the murderous blow, Because thou hadst no faulchion at thy side.
These shall be deeds, that strife was but a show;
And ill this argent bird shall thee betide;
This is the ancient bearing of my line;
Tis thou usurpest what by right is mine."