Lady Eleanor Beaufort, Countess of Ormond and Wiltshire (1431 – 16 August 1501) was the daughter of Edmund Beaufort, 2nd Duke of Somerset (1406-1455), KG, and was a sister of the 3rd and 4th Dukes of Somerset.
She was the daughter of Edmund Beaufort, 2nd Duke of Somerset, KG (1406–1455), by his wife, Lady Eleanor Beauchamp.
Eleanor Beauchamp was the daughter of Richard de Beauchamp, 13th Earl of Warwick, by his first wife, Elizabeth de Berkeley (herself daughter and heiress of Thomas de Berkeley, 5th Baron Berkeley, by his wife, Margaret de Lisle, 3rd Baroness Lisle); she was also an elder half-sister of Henry de Beauchamp, 1st Duke of Warwick, and Anne Neville, 16th Countess of Warwick.
Butler also held the post of councilor to the Lancastrian Prince of Wales.
After Towton, he was a proscribed as a traitor and was captured in the same year at Cockermouth and executed there in 1461.