Flottenkastell Alteburg, Roman naval fortress in Marienburg, Germany.
The Roman fortress extends across six hectares along the Rhine river, featuring defensive walls, workshops, and living quarters for naval personnel.
The Flottenkastell Alteburg served as the headquarters of the Classis Germanica, the Roman Rhine Fleet, from 50 AD until its decline around 270 AD.
The excavated structures reveal the architectural methods of Roman military engineering, combining mudbrick foundations with later stone construction techniques.
The archaeological site maintains documentation of over 1,000 Roman soldiers who operated the naval base, though minimal visible structures remain today.
The fortress contained specialized facilities for ship maintenance and military operations, supporting both rowing vessels and sailing ships of the Roman fleet.
Location: Marienburg
Location: Germania Inferior
Part of: Lower German Limes, Frontiers of the Roman Empire – The Lower German Limes (Germany)
GPS coordinates: 50.90420,6.97944
Latest update: June 28, 2025 03:59
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