The Harlaw, Lucas Harlaw, is the son of Lord Harridan Harlaw, and is the current Lord of the Ten Towers, Harlaw Hall, Harridan Hill, The Tower of Glimmering, and Grey Garden. A mute, he recently changed his coat of arms to the classic Harlaw scythe on a black field, featuring no words. Lord Lucas has promised himself that he will return the words of House Harlaw to its banners once a son who can speak is born to him.
http://i43.tinypic.com/2qvyu0y.jpg Pretty much that, without the greying hair.
Lucas' father was Lord Harridan of Grey Garden, who also happened to be stark, raving mad. He sliced Lucas' tongue out, making him a mute.