Complex sentence: From 1934 to 1938, Helen Fogel studied with Artur Schnabel at Lake Como in Italy, where she met Artur Schnabel's son, Karl Ulrich Schnabel.
Split into simpler sentences: From 1934 to 1938, Helen Fogel, who studying with Artur Schnabel at Lake Como in Italy. It was here that she met Artur Schnabel's son, Karl Ulrich Schnabel.