Richard Grey, 4th Baron Grey of Codnor

Richard Grey, 1st or 4th Baron Grey of Codnor ( – 1 August 1418) was an English soldier and diplomat. He was made Chamberlain and governor of Roxburgh Castle, now Floors Castle.

Military and diplomatic service In 1400 he was appointed Admiral of the king's fleet from the Thames to the north, and in the same year was made Governor of Roxburgh Castle. In 1402 he was one of the commissioners appointed to treat with Owain Glyndŵr for the release of Reginald Grey, 3rd Baron Grey de Ruthyn. He was appointed justice of South Wales in 1403, a position he held until 1407, and from 1404 to 1413 served as Chamberlain of the Household. The barony fell into abeyance between the three sisters following the death of the seventh baron; the termination of the abeyance in 1989 was granted in the favour of a descendant of Lucy.