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We only know what we have in The Bible. There are good grounds for believing that the story of Isaac and Ishmael is not historically true, but if we accept the biblical account (and the later Islamic tradition) then we accept that Isaac and Ishmael were brothers.
Isaac's little brother's name is Graham (TFIOS, chapter 9).
Isaac's brother spunked in his eyes and made him blind :'(
In the Bible, Laban is brother-in-law to Isaac.
maybe but his brother isaac isn't
i doubt so
Yes, Isaac Asimov had two younger siblings. He had a younger brother named Stanley and a younger sister named Marcia.
Isaac Newton had a sister i think :)
No his brother Jesus was.
Jacob.
Anne Frank didn't have a brother - just one sister, Margot.
Anne Frank (who wrote the famous diary) had one sister and no brother.
Yes.Abdul latif Hajano