She was his half sister by a different mother.
Yes half brother and sister
Abraham laughed in happy wonderment that he and Sarah, both aged, would soon have a son (Genesis 17).See also the Related Link.More about Abraham
Abraham married Keturah after the death of Sarah.
No, she was a commoner
Sarah was barren
Nancy Lincoln gave birth to Sarah Lincoln shortly after marring Thomas Lincoln. The father of Sarah is unknown. Thomas Lincoln was castrated when he was 12 and was not the father of Sarah or Abraham. Sarah and Abraham were brother and sister and they were not married. Abraham and Sarah had the same mother, but different fathers. Abraham's father was Samuel Davis. Abraham Lincoln married Mary Todd.
Abimelech, the king of Gerar, took Sarah away from Abraham after God intervened in a dream to prevent Abimelech from sinning with her. Abimelech returned Sarah to Abraham and compensated him with gifts.
abraham
His wife.
Abraham loved both Sarah and Hagar, but in different ways. Sarah was his wife and the mother of his son Isaac, who was the child of the promise. Hagar was his concubine and the mother of his son Ishmael, who was born before the promise of a son to Abraham and Sarah.
Abraham's sister's name is Sarah .
Abraham's wife was Sarah. When she reached old age without children, she urged Abraham to attempt to father a child with her servant, Hagar, in order to perpetuate his line. Abraham complied with Sarah's urging, and fathered Ishmael. Sarah later did give birth to Isaac, by Abraham. Some time after Sarah's death, Abraham remarried in his old age, to K'turah.
There is no mention in the Bible of Abraham and Sarah being separated at the time of Sarah's death. Genesis 23:2 states that Abraham went to mourn for Sarah and to weep for her after her death, indicating that they were together at the time of her passing.