You probably have all of these linked indirectly, but I thought I'd put them up just in case.
Polydore Vergil, Anglica Historia (1555 edition) (http://www.philological.bham.ac.uk/polverg/) - Latin and English John Foxe, Actes and Monuments (all editions) (http://www.johnfoxe.org/) The Online Froissart (http://www.hrionline.ac.uk/onlinefroissart/index.jsp) The Holinshed Project (http://www.cems.ox.ac.uk/holinshed/texts.shtml) (incomplete, but one of the sections they have is the deposition of Richard II)
no subject
Polydore Vergil, Anglica Historia (1555 edition) (http://www.philological.bham.ac.uk/polverg/) - Latin and English
John Foxe, Actes and Monuments (all editions) (http://www.johnfoxe.org/)
The Online Froissart (http://www.hrionline.ac.uk/onlinefroissart/index.jsp)
The Holinshed Project (http://www.cems.ox.ac.uk/holinshed/texts.shtml) (incomplete, but one of the sections they have is the deposition of Richard II)