Viscounts Hereford (1550) Walter Devereux, 1st Viscount Hereford (1489-1558) Walter Devereux, 1st Earl of Essex, 2nd Viscount Hereford (1539-1576) Robert Devereux, 2nd Earl of Essex, 3rd Viscount Hereford (1566-1601 Robert Devereux, 3rd Earl of Essex, 4th Viscount Hereford (1591-1646) Walter Devereux, 5th Viscount Herford (1578-1658) Leicester Devereux, 6th Viscount Hereford (1617-1676) Leicester Devereux, 7th Viscount Hereford (1674-1683) Edward Devereux, 8th Viscount Hereford (1675-1700) Price Devereux, 9th Viscount Hereford (d.1740) Price Devereux, 10th Viscount Hereford (1694-1748) Edward Devereux, 11th Viscount Hereford (d.1760) Edward Devereux, 12th Viscount Hereford (1740-1783) George Devereux, 13th Viscount Hereford (1744-1804 Henry Devereux, 14th Viscount Hereford (1777-1843) Robert Devereux, 15th Viscount Hereford (d.1855) Robert Devereux, 16th Viscount Hereford (1843-1930) Robert Charles Devereux, 17th Viscount Hereford (1865-1952) Robert Milo Leicester Devereux, 18th Viscount Hereford (b.1932)