25 But it chanced the seventh month after, that Ishmael the son of Nethaniah the son of Elishama of the king's blood came, and ten men with him and smote Gedaliah that he died: and so did he to the Jews and the Chaldeans that were with him at Mizphah.
2 Kings 25:25 Cross References - MSTC
2 Kings 11:1
1 And Athaliah the mother of Ahaziah, when she saw that her son was dead, she arose and slew all the seed of the king.
Jeremiah 40:15-41:15
15 Then said Johanan the son of Kareah unto Gedaliah in Mizphah these words, secretly, "Let me go, I pray thee, and I will slay Ishmael the son of Nethaniah, so that nobody shall know it. Wherefore will he kill thee? That all the Jews which resort unto thee, might be scattered, and the remnant in Judah perish?"
Jeremiah 41:15-15
15 But Ishmael the son of Nethaniah fled from Johanan with eight of his sworn companions, and went to the Ammonites.
Zechariah 7:5
5 "Speak unto all the people of the land, and to the priests, and say, 'When ye fasted and mourned in the fifth and seventh month, now this seventy years, did ye fast unto me?
Zechariah 8:19
19 "Thus sayeth the LORD of Hosts: The fast of the fourth month, the fast of the fifth, the fast of the seventh, and the fast of the tenth, shall be joy and gladness, and prosperous high feasts unto the house of Judah: Only, love the truth and peace.