Columb John (today "Columbjohn") in the parish of Broadclyst in Devon, England, is a historic estate that was briefly the seat of the prominent Acland family which later moved to the adjacent estate of Killerton. Nothing of the structure of the Acland mansion house survives except the arch to the gatehouse, dated about 1590, and the private chapel, restored in 1851. The site of the former mansion house is one mile due west of Killerton House. Descent of the estate The Devon Domesday Book tenant-in-chief of Colum in 1068 was Fulchere, also known as "Fulchere the Bowman", one of the king's lesser tenants. He held it in demesne. It passed to the Culme family and the estate was subsequently held by Reginald de Clifford. By the 12th century it was held by the Prideaux family until the Courtenay Earls of Devon acquired the estate from Sir John Prideaux. The estate was then granted to Richard Bampfield who died in 1430 with no male children, and thus the estate escheated to Thomas de Courtenay, 5th/13th Earl of Devon. It then passed through that family until Henry Courtenay, 1st Marquess of Exeter, whose estates were forfeited to the Crown following his attainder and execution in 1538. The estate was then granted by the Crown to George Basset (c.1524-c.1580), of Tehidy, and by the early 17th century it was held by the Acland family. Sir John Acland (c.1552-1620) built a new house there and next to it erected a private chapel which survives today as "St John's Chapel" having been restored or rebuilt in 1851. It is a grade II listed building. The estate was inherited by Hugh Acland (c.1543–1622) (elder brother and heir of John). He was predeceased by his eldest son and heir, Sir Arthur Acland, who therefore never inherited Acland, but who was granted by his father the estate of Columb John. Arthur's son, Sir John Acland, 1st Baronet abandoned the ancient family seat of Acland in favour of Columb John, which he had inherited from his great-uncle Sir John Acland (d.1620). He also purchased the adjoining estate of Killerton. Before the start of the Civil War he was appointed by King Charles I as one of 28 Commissioners of Array for Devon, in which role he raised two regiments for the King. The mansion house served as a garrison for Royalist troops, and played a key role for that