History of the Roman Empire from this point on, leading his biographers to label him as insane. Most of what history remembers of Caligula comes from Suetonius, in his book "Lives of the Twelve Caesars". According to Suetonius, Caligula once planned to appoint his favourite horse Incitatus to the Roman Senate. He ordered his soldiers to invade Britain to fight the Sea God Neptune, but changed his mind at the last minute and had them pick sea shells on the northern end of France instead. It is believed he carried on incestuous relations with his three sisters: Julia Livilla, Drusilla and Agrippina the Younger. He
Roman law could claim damages from the defendant. "Rei vindicatio" was derived from the ius civile, therefore was only available to Roman citizens. To describe a person's position in the legal system, Romans mostly used the expression "togeus". The individual could have been a Roman citizen ("status civitatis") unlike foreigners, or he could have been free ("status libertatis") unlike slaves, or he could have had a certain position in a Roman family ("status familiae") either as the head of the family ("pater familias"), or some lower "member".*"alieni iuris"-which lives by someone else's law. Two status types were senator and emperor. The history