1 Samuel 18:12

David : a son of Jesse of Judah; king of Israel,son of Jesse of Judah; king of Israel

Saul : the sixth king of Edom,son of Simeon and a Canaanite woman,son of Uzziah of Kohath son of Levi

1 Samuel 21:12

Achish : the king of Gath in David's time,the king of Gath in Solomon's time

David : a son of Jesse of Judah; king of Israel,son of Jesse of Judah; king of Israel

Gath : a town of the Anakim and Philistines in Judah 12 km south. of Ekron
(31° 41´, 34° 50´)