Attested: RC Leucumagna Leucomag~o Leucumagno (in the 3 manuscripts)
Where: Probably Portsmouth Harbour, around SU6103.
Name origin: About Leuco-, see here, referring to an open space, plus magnus ‘large’.
Notes: Ptolemy 2,3,33 described his Μεγας λιμην ‘great harbour’ as lying north of the Isle of Wight, for which R&S suggested the whole Solent. However, that does not really qualify as a harbour, though it is surrounded by inlets where small ships can moor, of which the largest is Portsmouth Harbour. Portchester Castle, deep inside, might be ND's Portum Adurni.
Last Edited: 19 February 2017