Walter Devereux, 1st Viscount Hereford

Walter Devereux, 10th Baron Ferrers of Chartley, created 1st Viscount Hereford (1488 – 17 September 1558) was an English courtier and parliamentarian.

Baron Ferrers Walter was the son and heir of John Devereux, 9th Baron Ferrers and Cecily Bourchier. In May 1501, his father died and Sir Walter succeeded him as the 10th Baron Ferrers, and succeeded to his father's lands in 1509. by Henry VIII of England.

In 1525, he was appointed High Steward of Sutton Coldfield and Buellt, Steward of the Household and Counsellor to Mary, Princess of Wales, Chief Justice of South Wales, and in 1526, Chamberlain of South Wales, Carmarthen and Cardigan.

Devereux served as Custos Rotulorum of Cardiganshire from 1543 to his death. being succeeded by his grandson, Walter Devereux, later Earl of Essex

Marriages and children Devereux was first married in May 1501 to Lady Mary Grey (1491- 22 February 1538), later being pardoned for having married in his father's lifetime and when under age. She was a daughter of Thomas Grey, 1st Marquess of Dorset and his second wife Cecily, suo jure Baroness Harington and Bonville.

Lord and Lady Ferrers had three children: Sir Richard Devereux, who died before his father. He married Lady Dorothea Hastings, daughter of the 1st Earl of Huntingdon and Lady Anne née Stafford. They were parents to Walter Devereux, 1st Earl of Essex. Walter married secondly to Margaret Garneys, daughter of Sir John Garneys, of Kenton. They had two children: Sir Edward Devereux, of Castle Bromwich, married Catherine Arden. They were parents of Walter Devereux, 5th Viscount Hereford, ancestors of the present Viscount Hereford. Katherine Devereux, married Sir James Baskerville.