Barentsz, Willem, approximately 1550-1597, Keere, Pieter van den, 1571-approximately 1646, and Claesz, Cornelis, approximately 1546-1609. topographicè summa diligentia designantu à Guiljelmo Barentsono; Pieter van den Keere fecit. Relief shown pictorially; depths shown in bathymetric ... Cornelis Claesz].