Constance is of Latin origin and means "constant" or "steadfast". It was popularized by early Christian martyrs, most notably Saint Constance, who is believed to have been the wife of Emperor Constantine I. The name gained further prominence through its association with medieval queens and saints. In literature, it has been used in works such as "The Mysteries of Udolpho" by Ann Radcliffe and "Constance" by C.S. Lewis. Variant spellings include Constantia and Constanza.
"Constance was popular as a baby girl's name in both 1952 and 1956, with six births each year, resulting in a total of twelve babies named Constance during those years."