Bernhard Caesar Einstein
Bernard first met his grandfather Albert when he was two years old. As a boy he travelled alone to spend time with Albert in New Jersey, and at Saranac Lake in upstate New York. Einstein recounted to his son Thomas that he used to irritate his grandfather because he would urinate out the window directly above Albert's study in Princeton. At Saranac Lake he enjoyed sailing with his grandfather. Apparently Albert Einstein's favorite time to sail was when there was very little wind. According to Bernard, his grandfather enjoyed the challenge of harnessing whatever little bit of breeze he could capture. The sailing tradition was carried on by Albert's son, Hans Albert, and Bernard's children on the San Francisco Bay. Albert Einstein died in April 1955. Having shared his love of music with his grandson, he bequeathed Bernard his violin in addition to a modest sum of money.
In 1954, Bernard married Doris Aude Ascher (born c. 1938), with whom he had five children:
Elsa Einstein
In 1896, Elsa married textile trader Max Löwenthal (1864–1914), from Berlin, with whom she had three children: daughters Ilse (1897–1934) and Margot (1899-1986), and a son who was born in 1903, but died shortly after birth. They lived together in Hechingen. In 1902, Max Löwenthal took a job in Berlin. His family stayed in Hechingen. She divorced Max on 11 May 1908, and moved with her two daughters to an apartment above her parents on Haberlandstrasse 5, in Berlin.