Loss of Citizenship

A person might lose his citizenship:

  1. By emigrating to a Latin colony. But in Justinian's time Latin colonists and all other free members of the Roman Empire were Roman citizens, and hence this rule was then obsolete.
  2. By expatriation, as by being shut out from the use of fire and water {interdictio aqua et ignis).
  3. By deportation to an island. This mode of punishment was introduced by Augustus to avoid the danger of allowing a crowd of banished men to meet wherever they pleased. It was banishment for life. Simple banishment did not, in Justinian's time, involve loss of citizenship.
  4. By desertion to the enemy.

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Effects of Marriage with Manus

Slavery by Birth

Mandate (Mandatum)