Complex sentence: Because it was owned by a Jewish family, the store was boycotted by the German government when the Nazi Party came to power in 1933, ransacked during Kristallnacht in 1938, then handed over by the Nazis to a non-Jewish family.
Split into simpler sentences: Because it was owned by a Jewish family, the store was boycotted by the German government when the Nazi Party came to power in 1933. It was ransacked during Kristallnacht in 1938, then handed over by the Nazis to a non-Jewish family.