pregnable fortress. The Cathedral, or Duomo, afterwards the pride of Florence, was then just commenced; but the extent of its area, and the solidity of its foundations, justified the high tone of the public decree for its erection, which declared that it should surpass in beauty every other building then existing in Italy, and be the wonder of the modern world. Among other curiosities, Galeazzo was conducted to the dens of the numerous lions and lionesses kept at the expense of the republic: there were nearly an hundred of these animals, that lived sumptuously, maintained by the superstition of the Florentines, who believed their welfare to be symbolical of that of the state.
In their visits to these wonders of Florence the Visconti were accompanied by many of the young nobles of both sexes, and Euthanasia and Fiammetta were among the number. Galeazzo, from the moment of his arrival, had directed his entire attention to the unravelling the character of Euthanasia, and from all that he heard and saw, became convinced that she was the cause of the fluctuations of Castruccio's mind, and that their union must be pre-
