[Footnote 147: Solus imperator faciem suam firmavit ut
petram, (Burcard. de Excidio Mediolani, Script. Ital. tom.
vi. p. 917.) This volume of Muratori contains the originals
of the history of Frederic the First, which must be compared
with due regard to the circumstances and prejudices of each
German or Lombard writer.
Note: Von Raumer has traced the fortunes of the Swabian
house in one of the ablest historical works of modern times.
He may be compared with the spirited and independent
Sismondi. - M.]