Edward's seven sons, whereof thyself art one, Were as seven vials of his sacred blood, Or seven fair branches springing from one root: Some of those seven are dried by nature's course, Some of those branches by the Destinies cut; But Thomas, my dear lord, my life, my Gloucester, One vial full of Edward's sacred blood, One flourishing branch of his most royal root, Is crack'd, and all the precious liquor spilt, Is hack'd down, and his summer leaves all faded, By envy's hand and murder's bloody axe.