Incitatus Dio (155-235 AD) indicated that the horse was attended to by servants and was fed oats mixed with gold flake, and that Caligula made the horse a priest. The accuracy of the received history is generally questioned. Historians such as Anthony A. Barrett suggest that later Roman chroniclers such as Suetonius and Dio Cassius were influenced by the political situation of their own times, when it may have been useful to the current emperors to discredit the earlier Julio-Claudian emperors. Also, the lurid nature of the story added spice to their narratives, winning them additional readers. One suggestion is that
Matthias, Holy Roman Emperor Holy Roman Emperor, as a result of Rudolf's illness. Allying himself with the estates of Hungary, Austria, and Moravia, Matthias forced his brother to yield rule of these lands to him in 1608; Rudolf later ceded Bohemia in 1611. Matthias's army then held Rudolf prisoner in his castle in Prague, until 1611, when Rudolf was forced to cede the crown of Bohemia to his brother. After Matthias's accession as Holy Roman Emperor, his policy was dominated by Klesl, who hoped to bring about a compromise between Catholic and Protestant states within the Holy Roman Empire in order to strengthen it.