engineering at Berkeley. After Frieda’s death, married Elizabeth Roboz (1904–1995) in 1959. Bernard has five children, the only known great-grandchildren of Albert Einstein.
H
ERMANN
E
INSTEIN
(1847–1902). Einstein’s father, from a Jewish family from rural Swabia. With his brother Jakob, he ran electrical companies in Munich and then Italy, but not very successfully.
I
LSE
E
INSTEIN
(1897–1934). Daughter of Elsa Einstein from her first marriage. Dallied with adventurous physician Georg Nicolai and in 1924 married literary journalist Rudolph Kayser, who later wrote a book on Einstein using the pseudonym Anton Reiser.
L
IESERL
E
INSTEIN
(1902–?). Premarital daughter of Einstein and Mileva Mari
. Einstein probably never saw her. Likely left in her Serbian mother’s hometown of Novi Sad for adoption and may have died of scarlet fever in late 1903.
M
ARGOT
E
INSTEIN
(1899–1986). Daughter of Elsa Einstein from her first marriage. A shy sculptor. Married Russian Dimitri Marianoff in 1930; no children. He later wrote a book on Einstein. She divorced him in 1937, moved in with Einstein at Princeton, and remained at 112 Mercer Street until her death.
M
ARIA
“M
AJA
” E
INSTEIN
(1881–1951). Einstein’s only sibling, and among his closest confidantes. Married Paul Winteler, had no children, and in 1938 moved without him from Italy to Princeton to live with her brother.
P
AULINE
K
OCH
E
INSTEIN
(1858–1920). Einstein’s strong-willed and practical mother. Daughter of a prosperous Jewish grain dealer from Wurttemberg. Married Hermann Einstein in 1876.
A
BRAHAM
F
LEXNER
(1866–1959). American education reformer. Founded the Institute for Advanced Study in Princeton and recruited Einstein there.
P
HILIPP
F
RANK
(1884–1966). Austrian physicist. Succeeded his friend Einstein at German University of Prague and later wrote a book about him.
M
ARCEL
G
ROSSMANN
(1878–1936). Diligent classmate at Zurich Polytechnic who took math notes for Einstein and then helped him get a job in the patent office. As professor of descriptive geometry at the Polytechnic, guided Einstein to the math
