At the side of the centralizing Emperor appeared a usurper
of the most peculiar kind; his vicar and son-in-law, Ezzelino da Romano. He
stands as the representative of no system of government or administration, for
all his activity was wasted in struggles for supremacy in the eastern part of
Upper Italy; but as a political type he was a figure of no less importance for
the future than his imperial protector Frederick. The conquests and usurpations
which had hitherto taken place in the Middle Ages rested on real or pretended
inheritance and other such claims, or else were effected against unbelievers
and excommunicated persons. Here for the first time the attempt was openly made
to found a throne by wholesale murder and endless barbarities, by the adoption
in short, of any means with a view to nothing but the end pursued. None of his
successors, not even Cesare Borgia, rivalled the colossal guilt of Ezzelino;
but the example once set was not forgotten, and his fall led to no return of
justice among the nations and served as no warning to future transgressors.
It was in vain at such a time that St. Thomas Aquinas,
born subject of Frederick, set up the theory of a constitutional monarchy, in
which the prince was to be supported by an upper house named by himself, and a representative
body elected by the people. Such theories found no echo outside the lecture -
room, and Frederick and Ezzelino were and remain for Italy the great political
phenomena of the thirteenth century. Their personality, already half legendary,
forms the most important subject of 'The Hundred Old Tales,' whose original
composition falls certainly within this century. In them Ezzelino is spoken of
with the awe which all mighty impressions leave behind them. His person became
the centre of a whole literature from the chronicle of eye-witnesses to the
half-mythical tragedy of later poets.