Veil of Veronica
Its popularity in medieval and modern times is based mainly on the importance in Christianity of Saint Veronica and her Veil of Veronica. Pet forms of Veronica include Ronnie and Roni and the German Vroni. In Russian, the pet form is Nika (Ника). "Veronica" is a popular name in many countries in the Mediterranean, Eastern Europe, and Latin America, and also Ireland, France, and French-speaking Canada.