with machiavelli at his side , he organized his fellows of the order of the assassins from florence and venice to roam throughout the italian peninsula , travelling far and wide , armed with copies of girolamo 's map , painstakingly gathering the remaining missing pages of the great codex ; scouring the provinces of piedmont , of trent , of liguria , umbria , veneto , friuli , lombardy ; of emilia-romagna , the marche , tuscany , lazio , abruzzo ; of molise , apulia , campania and basilicata ; and of dangerous calabria .