Richard Grey, 3rd Earl of Tankerville, 8th Lord of Powys (5 November 1436 – c. 1466) fought on the side of the House of York in the War of the Roses.
It does not appear "that this nobleman was ever summoned to parliament but strong evidence exists that he sat in assembly as a baron of the realm in 1455",[3] when it is recorded that he swore allegiance to Henry VI as Sir Richard Grey, Lord of Powis.
His support for the house of York resulted in his being attainted with many others by the Lancastrian Henry VI in 1460, when the earl of Warwick ordered him to surrender Montgomery castle.
In 1461 when Yorkist Edward IV came to the throne Richard Grey received the stewardship of Kerry, Kedwen, and Montgomery.
They also had one daughter, Elizabeth Grey, who married Sir John Ludlow, KB, of Hodnet, Shropshire, in 1465.