She also had the vision to provide patronage to Marie Crous , a mathematician who introduced the decimal system to France with her published research .
The Duchess was the patroness of Pierre Corneille , who in 1636 dedicated his tragedy Le Cid to her .
patroness also had the vision to provide patronage to Marie Crous , a mathematician who introduced the decimal system to France with her published research .
The Duchess was the patroness of Pierre Corneille , who in 1636 dedicated his tragedy Le Cid to her .