Cavaliere servente

In 18th- and 19th-century Italy, the cicisbeo (Italian pronunciation: [tʃitʃizˈbɛːo]; plural: cicisbei), or cavalier servente (chevalier servant in French), was the professed gallant and perhaps lover in a sexual sense of a married woman, who attended her at public entertainments, to church and other occasions and had privileged access to his mistress. The arrangement is comparable to the Spanish cortejo or estrecho and, to a lesser degree, to the French petit-maître. The exact etymology of the word is unknown; some evidence suggests it originally meant "in a whisper" (perhaps an onomatopeic word). Other accounts suggest it is an inversion of bel cece, which means "beautiful chick (pea)". According to OED, the first recorded usage of the term in English was found in a letter by Lady Mary Wortley Montagu dated 1718. The term appears in Italian in Giovanni Maria Muti's "Quaresimale Del Padre Maestro Fra Giovanni Maria Muti De Predicatori" of 1708 (p. 734).

This arrangement, called the cicisbeatura or cicisbeismo, was widely practiced, with knowledge and consent of the husband, especially among the nobility of the cities of Genoa, Nice, Venice, Florence and Rome. While many contemporary references to cicisbei and descriptions of their social standing exist, scholars diverge on the exact nature of the phenomenon. Some maintain that this institution was defined by marriage contracts, others question this claim and see it as a peculiarity of 18th-century customs that is not well defined or easily explained. Other scholars see it as a sign of the increasing emancipation of aristocratic women in the 18th century.

The cicisbeo was better tolerated if he was known to be homosexual. Louise d'Épinay wrote from Paris to her friend Ferdinando Galiani about the impending departure of marchese Alvise Mocenigo, the Venetian ambassador, whose tastes the ambassador had displayed in Paris:

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