Isabelle

Isabelle is a French form of Elizabeth, ultimately derived from the Hebrew name Elisheba, meaning God is my oath or God is abundance. It spread widely through medieval Europe alongside the related forms Isabel and Isabella, carried notably by several medieval queens, including Isabelle of France. The name shares its roots with cognates such as Isabel, Isabella, Isobel, Ysabel, and Elisabeth, which developed across different linguistic traditions. Its enduring popularity across French, English, German, Dutch, and Swedish-speaking regions reflects centuries of royal and aristocratic use.