The seer has a vision of the seven thunders, but these he is bidden to seal and not commit to writing.
The former, in the 15th century, won the Val Leventina (down which the St Gotthard train now thunders) as well as Bellinzona and the Val Blenio (though the Ossola Valley was held for a time only), while the latter added to the Val Bregaglia (which had been given to the bishop of Coire in 960 by the emperor Otto I.) the valleys of Mesocco and of Poschiavo.
Thenceforward the thunders continued chiefly on paper.
When he accepted the annexation of Romagna offered by the inhabitants themselves the pope excommunicated him, but, although a devout Catholic, he continued in his course undeterred by ecclesiastical thunders, and led his army in person through the Papal States, occupying the Marches and Umbria, to Naples.