Constanze
Constanze is a feminine given name of German origin, a form of Constance. It derives from the Latin Constantia, meaning steadfastness or constancy. The name is common in German-speaking countries and has international variants such as Constance (English), Constanza (Spanish and Italian), and Constança (Portuguese).
Usage and distribution: In German-speaking regions, Constanze has been used since at least the 18th century
Notable bearers: Constanze Weber (1762–1842) was a German singer who married Wolfgang Amadeus Mozart in 1782.