The sculpted astrolabes of the Portail Royal: study and teaching of astronomy in Chartres in the 12th century
Emma Claverie, Ecole nationale des Chartes Four astrolabes appear in the archways framing the tympanum of the central bay of the Royal Portal of Chartres Cathedral. Carried by the angels of the Apocalypse placed around Christ in majesty, their presence raises questions about the relationship that the intellectuals of Chartres had with this object, and…



