Elishama: Probably Identical with Number Four

In the seventh month, however, Ishmael son of Nethaniah, the son of Elishama, who was a member of the royal family, came with ten men and struck down and killed Gedaliah, along with the Judeans and Chaldeans who were with him at Mizpah.

In the seventh month, Ishmael son of Nethaniah, the son of Elishama, who was a member of the royal family and one of the king’s chief officers, came with ten men to Gedaliah son of Ahikam at Mizpah, and they ate a meal together there.