On the Consolation of Philosophy, often titled as The Consolation of Philosophy or simply the Consolation, is a philosophical work by the Roman philosopher and Christian theologian Boethius. Written in 523 while he was imprisoned and awaiting execution by the Ostrogothic King Theodoric, it is often described as the last great Western work of the Classical Period. Boethius's Consolation heavily influenced the philosophy of late antiquity, as well as Medieval and early Renaissance Christianity.