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
Holy Roman Emperor (horse) Holy Roman Emperor (horse) Holy Roman Emperor, is a retired Thoroughbred racehorse and active sire. He was a leading two-year-old racehorse, winning four races from seven runs in Europe in 2006. Holy Roman Emperor was sired by Danehill out of a Secretariat mare. Holy Roman Emperor was trained by Aidan O'Brien at Ballydoyle. In 2006 Holy Roman Emperor won two Group One races, the Phoenix Stakes where he defeated the Coventry Stakes winner Hellvelyn and subsequent Group One winning filly Miss Beatrix and the Prix Jean-Luc Lagardère where he defeated the useful French colt Battle Paint. He also defeated subsequent