mar·che·sa 
(mär-kāzə, -kĕzä)
(mär-kāzə, -kĕzä)n. pl. mar·che·se (-zā, -zĕ)
1. The wife or widow of a marchese.
2. An Italian noblewoman ranking above a countess and below a princess.
3. Used as the title for such a noblewoman.
[Italian, feminine of marchese, marchese; see MARCHESE.]