The feudal barony of Okehampton was a very large feudal barony, the largest mediaeval fiefdom in the county of Devon, England, whose caput was Okehampton Castle and manor. It was one of eight feudal baronies in Devonshire which existed during the mediaeval era.

The feudal barony of Plympton was a large feudal barony in the county of Devon, England, whose caput was Plympton Castle and manor, Plympton. It was one of eight feudal baronies in Devonshire which existed during the medieval era. It included the so-called Honour of Christchurch in Hampshire, which was not however technically a barony. The de Redvers family, first holders of the barony, were also Lords of the Isle of Wight, which lordship was not inherited by the Courtenays, as was the barony of Plympton, as it had been sold to the king by the last in the line Isabel de Redvers, 8th Countess of Devon (1237–1293).