It would, however, be wrong to suppose that all papal claims of secular jurisdiction, taxation and service, etc. were exactly defined, or that they applied with equal force all over a large region of central Italy, or that local warlords or others readily conceded obedience to Rome. This was no modern state yet, no equivalent to the contemporary strong monarchies of France or England. Force of tradition and forceful possession counted more than written deeds of donation.
–D.S. Chambers