Elizabeth Roboz Einstein
Roboz married Hans Albert Einstein, first son of physicist Albert Einstein, and professor of hydraulic engineering at the University of California, Berkeley, in June 1959. They did not have any children together, although Hans had four children from his first marriage to Frieda Knecht, only two of whom survived into adulthood. Hans died on July 26, 1973, and Roboz wrote a biography of him, "Hans Albert Einstein: Reminiscences of his Life and our Life Together" (1992).
Murder of the family of Robert Einstein
The murder of the family of Robert Einstein, a cousin of Nobel Prize Laureate Albert Einstein, took place on 3 August 1944 in Rignano sull'Arno, Italy, during World War II. Shortly before their withdrawal from the area, German soldiers arrived at the Einstein residence, executed Robert's wife and two daughters, and set the house on fire. Robert, who was in hiding at the time, survived the events but committed suicide less than a year later, on 13 July 1945.