Sign In

- Or use -
Forgot Password Create Account

Decorative map of Portugal by Le Père Placide de Sainte-Hélène, the brother-in-law of the famous French mapmaker Pierre Duval.

The map provides a large detailed treatment of Portugal, with an inset of the area around Porto on the Douro River.

Augustin Dechaussé Biography

 Brother-in-law to Pierre Du Val. He helped Du Val's widow and daughters continue the business after Du Val's death in 1683, assuming the title Geographer to the King.