2 Samuel 13 Good News Translation (GNT) Amnon and Tamar.

Absalom fled the country for a time and later returned to David. In this story, Amnon, Tamar’s half-brother, was consumed by lust for his sister. Tamar, daughter of Absalom, is mentioned in 2 Samuel 14:27.

"Absalom had three sons born to him, besides a daughter named Tamar, who was a beautiful woman" (2 Samuel 14:27). One Tamar, the beautiful daughter of Absalom, is only mentioned in passing in 2 Samuel 14:27; this Tamar became the mother of Queen Maacah, who married King Rehoboam. Why didn’t David punish Amnon for his sin against Tamar?
The other two Tamars are both tragic figures, women who were ruined by … Tamar was the beautiful daughter of the great King David and Maacah, a princess from a neighboring kingdom Her half-brother Amnon became obsessed with her He lured her to his room and raped her, then refused to marry her Absalom had three sons and one daughter named Tamar, a very beautiful woman. Maacah was the daughter of a neighboring king; She married King David and lived in King David’s harem; She bore David’s third son Absalom, an exceptionally handsome boy.
Tamar means "date palm." The second Tamar of the Old Testament was the beautiful daughter of David and sister of Absalom. Advised by his shrewd and manipulative friend, Jonadab, Amnon pretended to be ill, asking for his sister to come and care for him.

Absalom fathered three sons and one daughter, whom he named Tamar. Then she had a daughter Tamar, noted for her beauty; also another son Hanan Absalom cared for Tamar in his own home and would not speak to Amnon.

13 David's son Absalom had a beautiful unmarried sister named Tamar. Amnon, another of David's sons, fell in love with her. Many reasons have been suggested. It appears that Absalom named his daughter after his sister. 2 He was so much in love with her that he became sick, because it seemed impossible for him to have her; as a virgin, she was kept from meeting men. Two years later Absalom commanded his servants to murder Amnon in revenge (2 Samuel 13:28–29). Three sons were born to Absalom, and a daughter named Tamar, who was a beautiful woman.

Tamar was the daughter of Absalom. She was a beautiful woman, both in form and appearance.