Hans Albert Einstein
Hans Albert Einstein was born on May 14, 1904 in Bern, Switzerland, where his father, Albert Einstein, worked as a clerk in the patent office. His father was of German-Jewish descent and his mother, Mileva Marić, Serbian-Orthodox. His younger brother, Eduard Einstein, was born in 1910 and died in 1965. The fate of his older sister, Lieserl Einstein, Albert Einstein's and Mileva Marić's first child, is unknown. Their parents divorced in 1919 after living apart for five years.
Alfred Einstein
While one source (1980) lists Alfred as a cousin of the scientist Albert Einstein, another claims (1993) that no relationship has been verified. Some websites claim they were both descended from a Moyses Einstein seven generations back, hence they were sixth cousins. Alfred's daughter Eva maintains that they were not related. On the other hand, Alfred's daughter Eva wrote in 2003 that they were fifth cousins on one side, and fifth cousins once removed on the other, according to research by George Arnstein. They were photographed together in 1947 when Albert Einstein received an honorary doctorate from Princeton, but they did not know that they were distantly related.