A date anterior to the Norman Conquest has been ascribed to the castle, on the ground of its similarity to Trematon, Launceston, and Restormel castles, which Borlase and Grose assert to have been built before the year 900. The antiquaries, however, of the eighteenth century are often extremely inaccurate in their classification both of military and ecclesiastical structures. St. German’s Church, the ancient cathedral of Cornwall, is designated Saxon by them, whereas its features, as any tyro will now see, are undoubted Norman; in fact, there are no remains of Saxon architecture in Cornwall, and it would be surprising if there were, seeing that the Saxons never had any permanent hold on this part of Britain; for, though Egbert is said to have reduced the Cornish Britons to “nominal subjection” about the year 810, we find that Athelstan as late as 936 was in conflict with the British forces, and drove them across the Tamar, and not until that year had Exeter been subjected to his government.
Restormel Castle is undoubtedly of Norman construction, and it is probable that the most ancient portions of Launceston Castle are nearly two centuries later than the date ascribed by Borlase.
Although, therefore, from the naturally strong position of all these castles, it is probable that the Britons occupied these positions for defence, no visible remains can be considered as anterior to the Norman Conquest. In the absence of any architectural details at Plympton Castle—the masonry in the walls being somewhat analogous to the British masonry found in different parts of Cornwall—there may be more room for doubt and conjecture here than in respect to the other castles; yet the rudeness of the masonry may be accounted for by supposing that only the vassal inhabitants of the neighbourhood were employed in the works, under Norman architects and overseers.
The vestiges of Norman rule are clearly traceable in the county and borders of Devon. The same independent character which Exeter maintained against the Saxon authority, that city endeavoured to assert against the Conqueror; and the obedience of the western capital required to be insured by a number of castles, of a date not long subsequent to the Conquest. The castles of Barnstaple, Exeter, Totnes, Plympton, and Trematon guarded the rivers which gave access to the interior of the county; and the fortresses of Okehampton, Launceston, Lydford, Berry, and Tiverton, the inland passes. Of the castles enumerated here, Berry at least has been entirely rebuilt at a later period.
Plympton Castle was the chief residence of the Earls of Devon and Lords of Plympton. King Henry, the youngest son of the Conqueror, in the first year of his reign, granted the Lordship to Richard de Redvers or Rivers and his posterity, to enjoy also the title and possessions belonging to the Devonshire Earldom. The said Richard was one of William the Conqueror’s generals in the battle of Hastings, and obtained the barony of Okehampton from William Rufus. He was one of the chief councillors of Henry the First, and was so highly esteemed by him that he was created first Earl of Devon since the Conquest. The castle stood on the north side of the town, occupying a space of about two acres, extending 700 feet from east to west, including the ditch, and 400 feet from north to south. Leland says of this structure, in his Itinerary, “On the side of the town is a fair large castelle and dungeon in it, whereof the walls yet stand, though the lodgings be clean decayed.” At present there only remains a portion of the circular keep or tower, fifty feet in diameter, on a mound about sixty feet high. The ruined walls average fourteen feet in height and are nine feet thick, grouted with mortar or concrete as hard as the stones themselves. Around the keep in the thickness of the wall is a plastered flue, fifteen inches by ten inches, the purpose of which is not obvious. It has been suggested that it was designed for the conveyance of sound. It seems more probable that it was for ventilation. There is a similar flue at Rochester Castle. The habitable portions of Plympton Castle must have been of considerable extent. These, including the state apartments, and lodgings (as Leland calls them) for the military and retainers, were within the outer castle walls, and built around a spacious basse-court. The ballium wall—embattled and flanked with towers—was raised on a platform about 30 feet above the fosse or ditch, in the position now indicated by a modern path, and by a belt of trees planted about a hundred years ago. The basse-court has long been a quiet village green, and the site of the ballium wall, where stern warriors peered over frowning battlements, is now a “lovers’ walk.” Such are the tendencies of modern civilization. Surrounding the castle wall was a deep moat about 40 feet wide, still to be traced, except on the eastern side, where it has been filled up. In Leland’s time it was full of water, and stored with carp. There are no remains whatever of the great gateway of the castle (with its drawbridge and portcullis), which, as shewn by the seal of the Lords of Plympton, was on the north side. There were probably towers at the different angles.
In the time of Baldwin de Rivers, second Earl of Devon and Lord of Plympton, the castle was the scene of events which strikingly illustrate the then unsettled state of the country, and the insubordination of even the most privileged class. Baldwin de Rivers was considered one of the richest and bravest men of the age; but having with some other nobles rebelled against King Stephen, on account, it is said, of the king refusing to confer certain honours on them, he fortified himself in his castle at Exeter, where he was besieged by the monarch; and it appears that certain knights, to whom he had entrusted his castle of Plympton, being apprehensive of the Earl’s danger, or alarmed about their own safety, treated for the surrender of Plympton; and the king sent two hundred men with a large body of archers from Exeter to Plympton, who unexpectedly appeared under the walls of the castle about daybreak, and, according to the chronicler, the fortress was then almost entirely destroyed.
The lands of the Earl, which extended far and wide round Plympton Castle, and said to have been abundantly stocked and well cultivated, were harried by the king’s troops, who drove off to Exeter many thousands of sheep and oxen.[[6]] Baldwin was then dispossessed of all his honours, and banished the kingdom; but afterwards siding with the Empress Matilda, in the civil wars which ensued, he was restored to all his honours and possessions by Henry II. He died A.D. 1155, and was succeeded by his son, Richard de Redvers.
Baldwin, the eighth Earl, was the last of the male Redvers or Rivers who held the barony of Plympton. His death, by poison, occurred in France in 1262, and the inheritance of the Earls of Devon and Lords of Plympton descended to Isabella de Redvers, the wife of the Earl of Albemarle, who styled herself Countess of Devon. Their only issue was a daughter, Aveline, who married the Earl of Lancaster, and she dying in 1293, without issue, Hugh Lord Courtenay, next heir to Isabella, Countess of Devon, and lineally descended from John Courtenay, Lord of Okehampton, who married the daughter of Sir William de Redvers, became ninth Earl.
The possession by the Courtenays during succeeding centuries of the Earldom of Devon and the Barony of Plympton, was marked by many interesting and even tragical incidents, but these have no very immediate connection with the subject of this paper.[[7]]
The barony of Plympton was subdivided in the reign of Queen Mary. In the beginning of the eighteenth century it was in the hands of three families. It is now invested in the Earl of Morley.