Cecco d’Ascolî. Surnamed “Francesco Stabili.” He lived in the thirteenth century, and was considered the most famous astrologer in his day. A work of his published at Basle in 1485, and called Commentarii in Sphaeram Joannis de Sacrabosco, is still extant. He was burnt alive by the Inquisition in 1327.
Source: H.P.Blavatsky - The Theosophical Glossary