From 1275 to 1578, non-nobles(non - aristocrats) could acquire titles of nobility after three generations by buying lands or castles that had noble privileges attached to them, that is to say that these fiefs had formerly belonged to a noble lord or the king and had been given in feudal homage. Non-nobles could not possess noble fiefs without paying a special tax on them (the franc-fief) to their liege-holder.
In the 16th century, families could acquire nobility by possessing certain important official or military charges, generally after two generations.
Many titles of nobility were usurped by non-nobles in the Renaissance and early 17th century by purchasing fiefs and by living nobly, i.e. by avoiding commercial and manual activity and by finding some way to be exempted from the official taille lists. In this way, the family would slowly come to be seen as noble.
The king could grant titles of nobility to individuals by lettres patentes and convert their lands into noble fiefs or, for non-nobles possessing noble fiefs, to grant them possession of the noble titles.
The king could also confer on noble fiefs special privileges, such as peerage for certain duchies. In general, these lettres needed to be officially registered with the Parlement. In the case of an unwilling Parlement, nobles were termed à brevet
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10:52 AM on November 30, 2008