Joachim of Fiore

Joachim of Fiore, also known as Joachim of Flora (Italian: Gioacchino da Fiore; Latin: Ioachim Florensis; c. 1135 – 30 March 1202), was an Italian Christian theologian, Catholic abbot, and the founder of the monastic order of San Giovanni in Fiore. According to theologian Bernard McGinn, "Joachim of Fiore is the most important apocalyptic thinker of the whole medieval period." The Divine Comedy of Dante Alighieri is one of the most famous works possibly inspired by his ideas. Later followers, inspired by his works in Christian eschatology and historicist theories, are called Joachimites.

Source: Wikipedia — https://en.wikipedia.org/wiki/Joachim_of_Fiore