In order to check the arrogance of the _grandi_, and prevent them from combining with the populace, the middle-class Guelphs began to grant political rights on a continuously wider scale, while restricting the power of the nobles. As we have already seen, the latter had been obliged to provide sureties personally responsible for their actions, to swear to abstain from deeds of vengeance, from oppressing the people and so forth. The very remarkable law passed on August 6, 1289, served to overthrow the might of the nobles, both within and without the city walls, and to enhance that of the people by destroying the last lingering remains of the feudal system. Thanks to this decree, serfdom was entirely abolished throughout the territory; for in terms resembling a proclamation of the rights of man, it declared liberty to be an imprescriptible, natural right, a right never to be dependent on another's will; and that the Republic was determined not only to maintain liberty intact throughout its dominions, but likewise increase the same.[332] Thus every species of bondage, whether for a term or for life, was abolished, together with all contracts or agreements infringing on the liberty of the individual. It has been thought by some writers that the Commune of Bölogna had already achieved this most important reform in 1256, and that Florence only followed its example thirty-three years later. But this was an error induced by supposing that in the Italian communes the abolition of serfdom was completed at one stroke, whereas, on the contrary, it was carried out very slowly and in different degrees. In the territory there were not only _nobles_ and their _serfs_, but also _fideles_, whose personality was already recognised by law, but who still remained dependents of the _nobiles_ and bound to yield them service and tribute. At a later date the condition of the _fideles_ was further ameliorated; they could hold land in fee from their lords, or by payment of a yearly rent (a _livello_), but remained bound to them on terms of villeinage, and therefore bound to the soil. For this reason the lords believed, or feigned to believe themselves entitled to sell the soil, together with the _fideles_ attached to it, even when this was no longer in accordance with the spirit of the law. The Bölognese abolished serfdom in 1256, but the peasantry remained in their master's dependence, that is, more or less as _fideles_, and although these conditions were ameliorated in 1283 they were not altogether abrogated. But even earlier than 1289 serfs had ceased to exist in the Florentine territory, and, judicially, the _fideles_ had been long considered almost independent of their masters, although the latter, by the abuse of purely personal contracts, often compelled them to remain attached to the soil and claimed the right of disposing of them, as well as of the land. These were the abuses condemned and suppressed by the