Ryan, Michael A.
A kingdom of stargazers : astrology and authority in the late medieval crown of Aragon / Michael A. Ryan.
Astrology, Spanish -- History -- To 1500.
Divination -- Spain -- Aragon -- History -- To 1500.
Prophecies (Occultism) -- Spain -- Aragon -- History -- To 1500.
Astrology and politics -- History -- To 1500.
Aragon (Spain) -- Kings and rulers.