In its origin, the feudal granting of land had been seen as a personal link between the Lord and the vassals, but with time and the transformation of fiefdoms into hereditary possessions, the nature of the system was considered a form of “country politics”. In the 11th century, France saw what historians called a “feudal revolution” or “mutation” and a “fragmentation of powers” different from the development of feudalism in England, Italy or Germany at the same time or later. In France, counties and duchy began to break into small farms, when castles and small lords took control of local lands, and (as the comital families had done before them), the little masters seized/privatized a wide range of prerogatives and rights of the state – especially the very professional rights of justice, but also travel costs, market fees, forest royalties, the Lord`s obligations to use, etc. Power became more personal and decentralized at that time. The nobles, both noble and simple knights, took advantage of men, although they had no land, but they obtained from a master rights over the income of a mansion or other countries through the feudalism system. During the 11th and 12th centuries, these lands or fiefdoms were considered hereditary and, in most territories, they were no longer divisible between all heirs, as was the case in the early Middle Ages. Instead, most fiefdoms and countries went to the eldest son. The domination of the nobility was built on its control of the country, its military service as a heavy cavalry, its control over castles and various tax immunity or other constraints. Relief – A fine paid by the heir of a vassal to the Lord for the privilege of the success of an estate.
Feudal duties were the series of reciprocal financial, military and legal commitments of the warrior nobility in a feudal system.  These obligations have developed in both Europe and Japan, with the decentralization of the Empire and lack of monetary liquidity, as groups of warriors have assumed the social, political, judicial and economic spheres of the territory they control.  While many feudal duties rested on the control of a parcel country and its productive resources, even landless knights had feudal duties such as direct military service on the orders of their Lord. Feudal duties have not been uniform over time or across political boundaries. And in their later development also duties of and towards the peasant population, as accommodation.  Before a lord could give someone (a fiefdom), he had to make that person a vassal. This is what happened in a solemn and symbolic ceremony, called a ceremony of praise, which consisted of the act in two parts of tribute and allegiance. During the tribute, the Lord and the Vassal concluded a treaty in which the Vassal promised to fight for the Lord at his command, while the Lord agreed to protect the vassal from the external forces. A gentleman also enjoyed ancillary benefits and fiefdom-related rights. For example, when a vassal died, the Lord was entitled to a large sum of money from the heirs of the vassal. If the heir was a minor, the Lord could sell or give custody of the country and take advantage of his profits until the heir arrived. A gentleman also had the right to refuse the marriage of an heiress with a fiefdom if he did not want to have the husband as his vassal.
This type of family involvement of the Lord has made the feudal relationship intimate and complex.