Peerage of England
The ranks of the English peerage are, in descending order, Duke, Marquess, Earl, Viscount, and Baron. While most newer English peerages descend only in the male line, many of the older ones (particularly older baronies) can descend through females. Under English inheritance law all daughters are co-heirs, so many older English peerage titles have fallen into abeyance between various female co-heirs.
Aristocracy (class)
In the United Kingdom, members of the highest echelon of the aristocracy, the hereditary peers were, until 1999, members of the House of Lords—the upper house of the legislature, the Parliament of the United Kingdom. In 1999, most ceased to be members. However, the Duke of Norfolk, who always serves as Earl Marshal, the hereditary peer who serves as Lord Great Chamberlain (currently the Marquess of Cholmondeley), and a further 90 Representative Hereditary Peers elected by the Hereditary Peers retained membership. Since 1958, non-hereditary "life peers" have been created, who are automatically members of the House of Lords for life with the right to be known by their title. For example, John Gummer became (The Rt Hon.) Lord Deben.