Daugavgrīva fortress is a fortress built in Swedish Livonia in the 17th century. It is located in Daugavgrīva, Riga near the mouth of Buļļupe river branch in the Daugava.
Daugavgrīva fortress plan by Matthias Richter. 1642
Entrance into Daugavgrīvas fortress.
The Swedish army bombarding the fortress of Dünamünde in 1701.