Count (feminine: countess) is a historical title of nobility in certain European countries, varying in relative status, generally of middling rank in the hierarchy of nobility.[1] The etymologically related English term "county" denoted the land owned by a count. Equivalents of the rank of count exist or have existed in the nobility structures of some non-European countries, such as hakushaku during the Japanese Imperial era.[citation needed]

Count Carl Gustaf Mannerheim (1797–1854), the governor of the Vyborg Province, entomologist and the grandfather of Baron C. G. E. Mannerheim