Complex sentence: Born in Vienna on October 25,1923, and educated in Tokyo, Beate Sirota was the only child of Augustine (Horenstein) and noted pianist Leo Sirota, a Ukrainian Jew who had fled war-torn Russia and settled in Austria.
Split into simpler sentences: Born in Vienna on October 25,1923, and educated in Tokyo, Beate Sirota was the only child of noted pianist Leo Sirota and Augustine (Horenstein) Sirota. Leo, a Ukrainian Jew, had fled war-torn Russia and settled in Austria.