In medieval Provençal, Elizabeth became Isabel .
The name gained the "-a" suffix as it moved into Italian and Spanish-speaking regions. Isabella D (Isabella B, Isabelle, Ella C, Ella,...
The most prominent historical figure associated with these variations is (1474–1539), the Marchioness of Mantua. Often referred to by various iterations of her name in historical texts (including Isabelle in French contexts), she was a central figure of the Italian Renaissance. In medieval Provençal, Elizabeth became Isabel