There is no mention of a Roman fort at Colebrooke in the NMR, no aerial photographs in the archives and no evidence on the ground. This mention of a fort appears to refer to a square field that used to sit astride a straight run of hedgerows that was mistakenly identified as the course of the Roman road to Exeter in the 1980s. Two of this field's hedgerows have since been removed. The actual course of the road is further North and remains of the agger can be seen in a field some 300m South of Rag Lane and just to the East of Five Acre Copse. This is also clearly visible from aerial views accessible online. The road in fact follows the same line all the way from North Tawton to this point where the route becomes less obvious. A rather straight lane along the ridge of hills to the East of the railway line is suggestive of its line.
Historic estates
Coplestone
The Coplestone family took its name from the manor of Copleston in the parish of Colebrooke. Pole states that the earliest record of this family he was able to find was in a deed dated during the reign of King Edward II. The great antiquity of this family thus seems somewhat overstated in the traditional Devon rhyme, dismissed by Hoskins as containing "not a word of truth":
Several junior branches of the Copleston family existed seated at Eggesford, Bowden, Instow Upton Pyne, Kingdon and Woodland. Copleston Cross, the surviving shaft of a late Saxon large 10 foot high granite stone cross, named after the estate of Coplestone, is situated on the main Exeter to Barnstaple road at the junction of the parishes of Colebrooke, Crediton and Down St Mary. Coplestone House was the seat of the Coplestone family from the 13th century to 1659 and the surviving Georgian house was rebuilt on a new site in 1787 by its then owner Robert Madge.
Horwell
Horwell was the residence from the 16th century of the Prye family, one of the old armigerous gentry families of Devon which made a return in the 1620 Heraldic Visitations of Devon. Their armorials were: Ermine, a chevron gulesa chief azure fretty or. According to Risdon : "In this family one thing is remarkable that although they have continued many generations yet was it never known to have brought forth a younger brother until this our age, insomuch as the name is nowhere to be heard of but in only this place". The present house known as Horwell Barton has an early 19th-century facade.
In the parish church of St Andrew survive the following monuments:
Mural monument to Elizabeth Mills, daughter of John Mills of Colebrooke. She was buried in Colebrooke Church, where survives her mural monument with Corinthian columns and scrollwork pediment. She was the wife of Sir John Coryton, 1st Baronet.
