2 Samuel 3:27

Abner : a man of Benjamin in Saul and David's time

Asael : son of Zeruiah, David's sister; brother of Joab,a Levite assigned to teach in Judah under Jehoshaphat,a Levite assistant to the temple treasurer under Hezekiah,father of Jonathan who opposed Ezra's policies

Hebron : a valley and town of Judah 25 km west of the dead sea,son of Kohath son of Levi,son of Mareshah of Judah
(31° 32´, 35° 5´); (31° 32´, 35° 5´)

Yoab : son of Asaph; record keeper of King Hezekiah,son of Zimmah one of the Levites of Gershon whom, along with his son Eden, King Hezekiah assigned to supervise the cleansing of the temple,son of Obed-Edom; a Levite gatekeeper whose descendants returned from exile,son of Joahaz; record keeper of King Josiah

2 Samuel 20:9-10

Abisai : the son of Zeruiah, David's sister; brother of Joab

Amasa : son of David's sister Abigail and Jether the Ishmaelite,prince of Ephraim under Ahaz

Seba : son of Raamah son of Cush son of Ham son of Noah,son of Joktan of Shem,son of Jokshan son of Abraham and Keturah,a town that belonged to the tribe of Simeon,son of Bichri (Benjamin) who led a revolt against David,a country in southern Arabia whose queen visited Solomon (OS),son of Abihail; a founding father of one of the clans of Gad
(9° 1´, 38° 44´)

Syeba : name of a well
(9° 1´, 38° 44´)

Yoab : son of Asaph; record keeper of King Hezekiah,son of Zimmah one of the Levites of Gershon whom, along with his son Eden, King Hezekiah assigned to supervise the cleansing of the temple,son of Obed-Edom; a Levite gatekeeper whose descendants returned from exile,son of Joahaz; record keeper of King Josiah