1 Chronicles 3:4

These six were born unto him in Hebron; and there he reigned seven years and six months: and in Jerusalem he reigned thirty and three years.

Cross References

2 Samuel 2:11 And the time that David was king in Hebron over the house of Judah was seven years and six months.
2 Samuel 5:4-5 David was thirty years old when he began to reign, and he reigned forty years. In Hebron he reigned over Judah seven years and six months: and in Jerusalem he reigned thirty and three years over all Israel and Judah.
1 Kings 2:11 And the days that David reigned over Israel were forty years: seven years reigned he in Hebron, and thirty and three years reigned he in Jerusalem.
2 Samuel 5:14-16 And these be the names of those that were born unto him in Jerusalem; Shammuah, and Shobab, and Nathan, and Solomon, Ibhar also, and Elishua, and Nepheg, and Japhia, And Elishama, and Eliada, and Eliphalet.
1 Chronicles 29:27 And the time that he reigned over Israel was forty years; seven years reigned he in Hebron, and thirty and three years reigned he in Jerusalem.