The last provincial fleet, the classis Britannica, was reduced by the late 200s, though there was a minor upswing under the rule of Constantine (272–337).
Armada provinsi terakhir, classis Britannica, dirampingkan menjelang akhir kurun waktu 200-an M, meskipun sempat sedikit diperbesar pada masa pemerintahan Konstantinus (272–337).