The most authentic writers, William of Apulia. (l. v. 277,) Jeffrey Malaterra, (l. iii. c. 41, p. 589,) and Romuald of Salerno, (Chron. in Muratori, Script. Rerum Ital. tom. vii.,) are ignorant of this crime, so apparent to our countrymen William of Malmsbury (l. iii. p. 107) and Roger de Hoveden, (p. 710, in Script. post Bedam) and the latter can tell, how the just Alexius married, crowned, and burnt alive, his female accomplice. The English historian is indeed so blind, that he ranks Robert Guiscard, or Wiscard, among the knights of Henry I, who ascended the throne fifteen years after the duke of Apulia's death.