Roman citizens. Earlier Roman sources indicate that Roman women could forfeit their individual rights as citizens when entering into a manus marriage. In a manus marriage, a woman would lose any properties or possessions she owned herself and they would be given to her husband, or his pater familias. Manus marriages had largely stopped by the time of Augustus and women instead remained under the protection of their pater familias. Upon his death, both the men and women under the protection of the pater familias would be considered sui iuris and be legally independent, able to inherit and own property without the approval of their pater familias. Roman woman however would enter into a tutela, or guardianship. A woman's tutor functioned similarly to a pater familias, but he did not control the property or possessions of a woman and was generally only needed to give his permission when a woman wanted to perform certain legal actions, such as freeing her slaves. Officially, one required Roman citizenship status to enrol in the Roman legions, but this requirement was sometimes overlooked and exceptions could be made. Citizen soldiers could be beaten by the centurions and senior officers for reasons related to discipline. Non-citizens joined the Auxilia and gained citizenship through service. Following the early 2nd-century BC Porcian Laws, a Roman citizen could not be tortured or whipped and could commute sentences of death to voluntary exile, unless he was found guilty of treason. If accused of treason, a Roman citizen had the right to be tried in Rome, and even if sentenced to death, no Roman citizen could be sentenced to crucifixion. Ius gentium was the legal recognition, developed in the 3rd century BC, of the growing international scope of Roman affairs, and the need for Roman law to deal with situations between Roman citizens and foreign persons. The ius gentium was therefore a Roman legal codification of the widely accepted international law of the time, and was based on the highly developed commercial law of the Greek city-states and of other maritime powers. The rights afforded by the ius gentium were considered to be held by all persons; it is thus a concept of human rights rather than rights attached to citizenship. Ius migrationis was the right to preserve one's level of citizenship upon relocation to a polis of comparable status. For example, members of the cives Romani maintained their full