Elishama: Probably Identical with Number Four
Source: Nav
2 Kings 25:25
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.
Jeremiah 41:1
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.