Right trusty, worshipful and honourable good friends, and our allies, I greet you well. Being given to understand your good devoir and entreaty to advance me to the furtherance of my rightful claim, due and lineal inheritance of that crown, and for the just depriving of that homicide and unnatural tyrant which now unjustly bears dominion over you, I give you to understand that no Christian heart can be more full of joy and gladness than the heart of me your poor exiled friend, who will, upon the instant of your sure advertising what power you will make ready and what captains and leaders you get to conduct, be prepared to pass over the sea with such force as my friends here are preparing for me. And if I have such good speed and success as I wish, according to your desire, I shall ever be most forward to remember and wholly requite this your great and moving loving kindness in my just quarrel. Given under our signet. H. 420 blaze it.
Letter circulated around November 1484, as quoted in Annette Carson (2009), Richard III: The Maligned King, The History Press, page 245