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
Xanten Horse-Phalerae ('while Pliny was Prefect of the cavalry'). This suggests that these horse-phalerae belonged to a cavalryman under his command when Pliny was stationed in Germania Inferior in approximately 50 AD. The set of horse-trappings is made of about 60 silvered-bronze phalerae and forms part of a decorative equestrian harness that is only partly preserved. Organic material such as leather has not survived but enough roundels have to enable a partial reconstruction of the set in the museum. One of the phalerae has the bust of a Roman Emperor, but it is difficult to determine which emperor is represented from the