Jan van Valckenborgh

Johan van Valckenburgh (c. 1575 − 1624) was a Dutch military engineer who built fortresses. He is known for building the Bastion Henricus which was a fortification around Hamburg. Today the Hamburg History Museum is on this site.

Jan van Valckenborgh

Johan van Valckenburgh (c. 1575 − 1624) was a Dutch military engineer who built fortresses. He is known for building the Bastion Henricus which was a fortification around Hamburg. Today the Hamburg History Museum is on this site.