Silvester Petra Sancta

Frontispiece to Petra Sancta's Tesserae Gentilitiae (1638)
The title page of Petra Sancta's De Symbolis heroicis (1634)
Hatching table (De symbolis heroicis, 1634)
Description of hatching system (De symbolis heroicis, 1634)
The portrait of cardinal Carafa from the book De Symbolis heroicis (with kind of a screening, not heraldic hatching at the escutcheon)
The Carafa coat of arms (De symbolis heroicis, 1634) with screening, not heraldic hatching at the escutcheon
The Carafa genealogy (De symbolis heroicis, 1634) with screening, not heraldic hatching at the escutcheons

Silvester Petra Sancta (1590, in Rome – 6 May 1647, in Rome) was an Italian Jesuit priest, and heraldist. His name is also spelt as Sylvester Petra Sancta, Petrasancta, in Italian Padre Silvestro da Pietrasanta. Pseudonym: Coelius Servilius