Thomas Martin Einstein
Albert Einstein had three children, Lieserl Maric (1902–1903?), Hans Albert Einstein (1904–1973), and Eduard "Tete" Einstein (1910–1965), but only Hans Albert is known to have married and had children. Hans Albert's only biological child to survive to adulthood was Bernard Caesar Einstein (1930–2008), who was a physicist and the father of Thomas Martin Einstein.
Murder of the family of Robert Einstein
In 1944, Robert Einstein, who had lived in Italy for many decades, resided with his family in Rignano sull’Arno, southeast of Florence, in the Villa Tenuta dell Focardo. His family consisted of Caesarina, his wife, the daughter of a Protestant minister, his two daughters Luce and Cici, 27 and 18 years old respectively, and his adopted nieces Lorenza and Paola Mazzetti, who were the 17-year-old twin daughters of his late sister-in-law.