All we know for certain about Nicholas is that he was a fourth-century bishop
of Myra in Turkey, yet he became one of the most popular of the medieval
saints. Much better known is the figure derived from him, "Santa Claus!" A
vast body of legend surrounded Nicholas, in the best known of which he
restored to life three children who had been pickled in brine. For this reason
he became the patron saint of children, but he also had a particular
association with sailors and merchants. His cult was so strong that countless
churches were dedicated to him and he became the patron of many countries,
including Russia.