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A marquess (UK: //; French: marquis, [mɑʁki])[a] is a nobleman of high hereditary rank in various European peerages and in those of some of their former colonies. The term is also used to translate equivalent Asian styles, as in Imperial China and Imperial Japan. The German language equivalent is Markgraf (Margrave).
The word marquess entered the English language from the Old French marchis ("ruler of a border area") in the late 13th or early 14th century. The French word was derived from marche ("frontier"), itself descended from the Middle Latin marca ("frontier"), from which the modern English words march and mark also descend. The distinction between governors of frontier territories and interior territories was made as early as the founding of the Roman Empire when some provinces were set aside for administration by the senate and more unpacified or vulnerable provinces were administered by the emperor. The titles "duke" and "count" were similarly distinguished as ranks in the late empire, with dux (literally, "leader") being used for a provincial military governor and the rank of comes (literally "companion," that is, of the Emperor) given to the leader of an active army along the frontier.
The title of marquess in Belgium predates the French Revolution and still exists today. See Belgian nobility § Marquesses in the Belgian nobility and List of noble families in Belgium § Marquesses.
In Spain, the rank of Marquess/Marchioness (Marqués/Marquesa) still exists. One hundred forty-two of them are Spanish grandees. Normally a marqués is addressed as "Most Illustrious Lord" (Ilustrísimo Señor), or if he/she is a grandee as "Most Excellent Lord" (Excelentísimo Señor). Examples include the Marquess of Mondejar, Grandee of Spain.
Main article: Marquesses in the United Kingdom
The honorific prefix "The Most Honourable" precedes the name of a marquess or marchioness of the United Kingdom.
In Great Britain, and historically in Ireland, the correct spelling of the aristocratic title of this rank is marquess (although on the European mainland and in Canada, the French spelling of marquis is used in English). In Scotland, the French spelling is also sometimes used. In Great Britain and historically in Ireland, the title ranks below a duke and above an earl. A woman with the rank of a marquess, or the wife of a marquess, is called a marchioness // in Great Britain and Ireland, or a marquise // elsewhere in Europe. The dignity, rank or position of the title is referred to as a marquisate or marquessate.
The theoretical distinction between a marquess and other titles has, since the Middle Ages, faded into obscurity. In times past, the distinction between a count and a marquess was that the land of a marquess, called a march, was on the border of the country, while a count's land, called a county, often was not. As a result of this, a marquess was trusted to defend and fortify against potentially hostile neighbours and was thus more important and ranked higher than a count. The title is ranked below that of a duke, which was often largely restricted to the royal family.
The rank of marquess was a relatively late introduction to the British peerage: no marcher lords had the rank of marquess, though some were earls. On the evening of the Coronation of Queen Victoria in 1838, the Prime Minister Lord Melbourne explained to her why (from her journals):
I spoke to Ld M. about the numbers of Peers present at the Coronation, & he said it was quite unprecedented. I observed that there were very few Viscounts, to which he replied "There are very few Viscounts," that they were an old sort of title & not really English; that they came from Vice-Comites; that Dukes & Barons were the only real English titles; — that Marquises were likewise not English, & that people were mere made Marquises, when it was not wished that they should be made Dukes.
Like other major Western noble titles, marquess (or marquis) is sometimes used to translate certain titles from non-Western languages with their own traditions, even though they are, as a rule, historically unrelated and thus hard to compare. However, they are considered "equivalent" in relative rank.
This is the case with:
Marquesses and marchionesses have occasionally appeared in works of fiction. For examples of fictional marquesses and marchionesses, see List of fictional nobility#Marquesses and marchionesses.