"Dadannudd" is a son's claim to land which previously belonged to his father. A landowner's right to convey land was restricted; it was only allowed under certain circumstances with the consent of his kindred and coheirs ("laudatio parentum"). With the consent of the lord and the kindred, the landowner could use the living gage ("prid"). The land would be made over to a gagee ("pridwr") for a period of four years, and if the land had not been redeemed by the gagor (owner) or his heirs at the end of the four years, the gage could then be renewed for additional four-year periods. After three renewals (or 16 years total), the land passed permanently to the gagee.