Herman

Ser. XII century.) --
. Author of the treatise on rain, . concise dictionary of Arabic astronomical and astrological terms, . Latin version of "planisphere" Ptolemy, . Translation astrological treatise "On sentences stars" Sahl ibn Bishr and "Introduction to Astrology" in 8 books Abu Ma `ball,
. Main essay G.D. - Work on cosmology, "De essentiis" (completed in Beziers in late 1143).

G.D. made friends with another famous astrologer and translator - Robert of Chester.