In September 2016, he had celebrated his Bar Mitzvah, one of the most important ceremonies in judaism, of which he had been deprived of a century earlier.
Yisrael Kristal, a Polish Jew who survived the Holocaust to immigrate to Israel and become the world's oldest man, died on Friday at the ripe age of 114.
Kristal was born in Poland.
The son of a religious scholar, Mr Kristal lost his mother and father during World War One, according to reports.
After growing up in Poland, Kristal worked in the family confectionary business until Nazi Germany invaded Poland in 1939. He later moved to Lodz to work in the family confectionery business.
Kristal, a resident of the coastal city of Haifa, was given a certificate by Guinness World Records previous year, acknowledging his status as the oldest known man living.
Kristal moved to a ghetto with his wife and two children, who died there.
Kristal was sent to various concentration camps including Auschwitz where he performed slave labor, and he only weighed about 81 pounds when he was found by the Allies. "They had to think about a profession and about making a living".
Oren Kristal said his grandfather gave no explanation as to the secret behind his incredible longevity.
After World War II he met and married his second wife, Batsheva, who was also a Holocaust survivor.
She told Israeli news website Ynet [in Hebrew] she had had a "great father", adding: "Despite all that he went through, and he lost the whole family in the Holocaust, he had a lot of optimism, and he always saw only light and good in everything".