In 1931 , Gerardina Tjaberta van Ysselsteyn conjectured that the tract was a collaboration between Languet and de Mornay .
Likely candidates for its authorship include Hubert Languet and Philippe de Mornay .
In 1931 , Gerardina Tjaberta van Ysselsteyn conjectured that the tract was a collaboration between Hubert Languet and de Mornay .
Likely candidates for its authorship include Hubert Languet and Philippe de Mornay .