Small castle becomes a modern fortress

Even small castles in the deepest province were modernized and upgraded in the early modern era for the fight with firearms.

Bertradaburg in the Eifel in the middle of the 16th century.
With bastions reinforced medieval core castle.

Reinforced with bastions.

Rondelles and bastions for page deletion.

Cannon positions in casemates and on the rondels.

Bertradaburg S2