ChronPrag Chronicon Bohemicum Pragense, ed. J. Emler, FRB VII, s. a. (c. 1898), pag. 10–12. 894–1419 magna c-a in Boemia comittitur, alias drahe leto ChronPrag 11a qui omnes presentes fuerunt circa f-em illius nequam ChronPrag 12