Thus it arose that, men's minds being thus unsettled, it was decided by certain men of Urbino to seize the fortress of San Leo, which was held for the duke, and which they captured by the following means. The castellan was fortifying the rock and causing timber to be taken there; so the conspirators watched, and when certain beams which were being carried to the rock were upon the bridge, so that it was prevented from being drawn up by those inside, they took the opportunity of leaping upon the bridge and thence into the fortress. Upon this capture being effected, the whole state rebelled and recalled the old duke, being encouraged in this, not so much by the capture of the fort, as by the Diet at Magione, from whom they expected to get assistance.