When a person or community was granted a seigneury, certain obligations had to be met: rendering fealty and homage; ceding land to those who requested it; maintaining and having tenants maintain "hearth and home;" reserving the oak wood for the building of royal ships; and acknowledging the King of France had ownership of the subsoil. The awarding of a fief had to be confirmed by the King. Seigneurs could sell the land they were granted. The price of a seigneury was generally proportional to its level of development: the more numerous the censitaires, the more was its selling price. The purchaser of a seigneury was required to pay the droit de quint, a tax collected by the state equal to one-fifth of the sale price. A seigneur could cede part of a seigneury as an arrière-fief [sub-fief]. The holder of this land had the same rights and obligations as the seigneur; however, he owed fealty and homage not to the King, but to the seigneur who ceded him his arrière-fief.