For 10 points, name this second Roman emperor, the successor of Augustus.
This ruler's reign is the last covered in a history written by a soldier who served under him named Velleius Paterculus. After growing out his hair, the slave Clemens impersonated his former master before being executed by this ruler. This man was forced to divorce his wife Vipsania Agrippina. This man's reign may have started with the execution of his rival Agrippa Postumus, and his second wife's exile may have been orchestrated by his mother, Livia Drusilla. The senate received this ruler's secret commissioning of Macro to lead the Praetorian Guard, which led to the execution of Sejanus. This ruler spent his last decade on the island of Capri before his death led to the rule of Caligula. For 10 points, name this second Roman emperor, the successor of Augustus.
This ruler's reign is the last covered in a history written by a soldier who served under him named Velleius Paterculus.
Tiberius Julius Caesar Augustus [or Tiberius Claudius Nero]