The History of Rome

But not only was the power of the master of the house substantially unlimited and responsible to no one on earth; it was also, as long as he lived, unchangeable and indestructible. According to the Greek as well as Germanic laws the grown-up son, who was practically independent of his father, was also independent legally; but the power of the Roman father could not be dissolved during his life either by age or by insanity, or even by his own free will, excepting only that the person of the holder of the power might change, for the child might certainly pass by way of adoption into the power of another father, and the daughter might pass by a lawful marriage out of the hand of her father into the hand of her husband and, leaving her own gens and the protection of her own god to enter into the gens of her husband and the protection of his god, became thenceforth subject to him as she had hitherto been to her father. According to Roman law it was made easier for the slave to obtain release from his master than for the son to obtain release from his father; the manumission of the former was permitted at an early period, and by simple forms; the release of the latter was only rendered possible at a much later date, and by very circuitous means. Indeed, if a master sold his slave and a father his son and the purchaser released both, the slave obtained his freedom, but the son by the release simply reverted into his father's power as before. Thus the inexorable consistency with which the Romans carried out their conception of the paternal and marital power converted it into a real right of property.

Closely, however, as the power of the master of the household over wife and child approximated to his proprietary power over slaves and cattle, the members of the family were nevertheless separated by a broad line of distinction, not merely in fact but in law, from the family property. The power of the house-master - even apart from the fact that it appeared in operation only within the house - was of a transient, and in some degree of a representative, character. Wife and child did not exist merely for the house-father's sake in the sense in which property exists only for the proprietor, or in which the subjects of an absolute state exist only for the king; they were the objects indeed of a legal right on his part, but they had at the same time capacities of right of their own; they were not things, but persons. Their rights were dormant in respect of exercise, simply because the unity of the household demanded that it should be governed by a single representative; but when the master of the household died, his sons at once came forward as its masters and now obtained on their own account over the women and children and property the rights hitherto exercised over these by the father.  On the other hand the death of the master occasioned no change in the legal position of the slave.

Family and Clan (Gens)