sentence1: Stephen Vizinczey suggests that Tolstoy created Maria out of his longing for his mother , Princess Maria Nikolayevna Volkonskaya , who died before Tolstoy 's second birthday .
sentence2: Stephen Vizinczey suggests that Tolstoy created Maria from his longing for his mother , Princess Maria Nikolayevna Volkonskaya , who died before the second birthday of Tolstoy .