Colcombe Castle was a castle or fortified house situated about a 0.5 mi (0.80 km) north of the village of Colyton in East Devon. It was a seat of the Courtenay family, Earls of Devon, whose principal seat was Tiverton Castle, about 22 miles (35 km) to the north west. It was used as his seat by Thomas de Courtenay, 5th Earl of Devon (d. 1458) while his widowed mother occupied Tiverton Castle as her dower house. Its position near to Shute, the seat of William Bonville, 1st Baron Bonville (1392–1461), the arch-enemy of the 5th Earl, led to some serious territorial battles between the two families, culminating in the Battle of Clyst Heath of 1455.