2 Samuel 3:2, 4-5

Sons were born to David in Hebron: his firstborn was Amnon, by Ahinoam of Jezreel

the fourth, Adonijah the son of [his wife] Haggith; the fifth, Shephatiah the son of [his wife] Abital; and the sixth, Ithream, by David’s wife Eglah. These [sons] were born to David in Hebron.