The consistory court of the bishops of Ely by the fourteenth century regularly held its sessions in Cambridge, the largest and most prosperous city of the diocese. Ely itself was small, little more than a hamlet, and physically isolated. Recurrent flooding in the fens often cut off the roads leading into the Isle of Ely, and even at the best of times Ely tended to be rather out of the way. Although Cambridge was flat and lowlying, it rose just far enough above the level of the fenlands to be secure from all but the worst flooding, while the River Cam gave the city ready access to the commercial networks of eastern and southern England.