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.
Earl of Warwick
Earl of Warwick is one of the most prestigious titles in the peerages of the United Kingdom. The title has been created four times in English history, and the name refers to Warwick Castle and the town of Warwick.