This post on Martin Down and the Battle of Meretun is adapted from, and provides additional information for, my book, King Alfred: A Man on the Move, available from Amazon and book shops.
The Battle of Meretun took place two months after the battle at Basing. Alfred and his brother were fighting against the Vikings, but lost, which is what also happened at Basing. There appear to be two main candidates for the location of this battle, one being Martin in Hampshire and the other being Marden in Wiltshire. However, we have very little to go on and other places with similar names are possible. Merdon Castle, in Hampshire, is another possibility, although I have been unable to discover whether this name was acquired after the Norman Conquest. The place that seems to make the most sense to me is Martin in Hampshire, which is a village just south of the A354 main road between Salisbury and Blandford Forum.
King Æthelred (Alfred’s elder brother) died after the Battle of Meretun and he was buried at Wimborne in Dorset. It is therefore possible that he died from wounds sustained in battle but it is also possible that he lived a little longer and died of something else. If he had died of his wounds then it may be relevant to point out that Wimborne is not very far from Martin (about 14 miles). Indeed, the Roman road known as Ackling Dyke runs past Martin on its way to Badbury Rings, which is only four miles from Wimborne.
The geographic feature called Martin Down lies a short distance to the west of Martin and there one can explore the famous Bokerley Ditch, which pre-dates the time of Alfred, but perhaps could have been used strategically in battle. Bokerley Ditch also cuts across a Roman road so it could have been used for either side to attack the other coming up that route. To the north this Roman road is still a bridleway and to the south it is now under the A354, so it seems likely that it would have been in use in Anglo-Saxon times. Interestingly, the county boundary between Dorset and Hampshire in this area still follows Bokerley Ditch. One can speculate as to why the Vikings might have been at Martin, and it occurs to me that a contingent from the base at Reading may have been trying to get west, perhaps to Exeter. The Vikings would indeed attack Exeter in 876 and 893, and it therefore seems plausible that they would have liked to have done so in 871.
It may be impossible to disprove that the battle took place at Marden (Wiltshire) instead, but the place-name of Marden seems to have derived from Mercdene, quite dissimilar to Meretun. A charter issued by King Edmund between 944 and 946 shows Martin in Hampshire being referred to as Mertone, which is not much different from the Meretun of the Anglo-Saxon Chronicles. I therefore think Marden is a less likely location than Martin for the battle of Meretun.
I was also tempted by Marten in Wiltshire (yes, this does get confusing), largely because of its proximity to the Inkpen Ridgeway, connecting it to Basing, the location of the previous battle. I have written much more about Alfred’s travels in my book, which also contains maps and references. Tap or click the image.