Belgium's Grognon citadel and Medieval port resurfacing

The Grognon citadel, in Namur (in Wallonia, Belgium), continues to reveal its secrets, as rescue excavations began several months ago, with a view to building an underground car park at the confluence of the Meuse and Sambre rivers. Recently, archaeologists have uncovered the remains of the ramparts, a watchtower and the Grognon Gate, which were used to enter the area by ship. 

The excavations of the Grognon citadel allow us to visualize the boundaries of the district 

as it existed until the 19th century [Credit: © SPW]

"We knew that the gate was there, and also the round tower," explains Dominique Bosquet, archaeologist at the Walloon Public Service,"but the exact state of preservation, the smaller buildings adjoining it, the complexity of a building built against the rampart, then demolished and reconstructed on larger scale - all these things can only be discovered and really clarified through archaeological investigation. So we knew we were going to find this kind of thing, but not to such a degree of preservation and complexity."

"In reality," adds Raphaël Vanmechelen, also an archaeologist at the SPW,"there are four types of fortification walls and four gates, all of which are interesting because they all reflect different architectural techniques, public space design and military techniques. But it is true that the second, which can be dated precisely to the end of the 12th century, is particularly spectacular. This makes it possible to fully understand the morphology of the old quarter".

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