Csdrhrt

Any other cases of people who lose a child in תנ"ך? I have a few ideas but am looking for a fuller list, though let's keep it to Pshat reading of the text, not Midrashim.

• Adam and Eve (Genesis 4:25):* their son Cain killed their other son Abel


• Terah (Genesis 11:28): his son Haran died in his lifetime


• Judah (Genesis 38:7,10):* his sons Er and Onan died after marrying Tamar


• Pharaoh and all the Egyptians (Exodus 12:30):¹ lost their firstborn in the tenth plague


• Aaron (Leviticus 10:2):* his sons Nadab and Abihu died when bringing a fire offering


• Zur (Numbers 25:15):³ his daughter Cozbi was killed while he was killed at a later time (31:8)


• Mother of Sisera (Judges 5:28): described as being alive after Sisera died


• Jephthah (Judges 11:39):¹ he fulfilled his vow to sacrifice his daughter, apparently killing her


• Eli (1 Samuel 4:11):* his sons Hofni and Phinehas died in battle with Philistines


• Mother of Agag (1 Samuel 15:33): described as being bereaved when Agag died


• Saul (1 Samuel 31:2): his sons died shortly before him in the war against the Philistines


• David (2 Samuel 12:18, 13:32, 18:15):* he lost an unnamed child, Amnon, and Absalom


• A prostitute (1 Kings 3:19): two prostitutes had two sons, and one of them died


• Jeroboam (1 Kings 14:17):² his son Abijah died of a sickness


• Hiel of Bethel (1 Kings 16:34):¹ lost his sons by building Jericho


• Mesha (2 Kings 3:27): sacrificed his son


• An unnamed woman (2 Kings 6:28): ate her son and wanted to eat her neighbor's son


• Athaliah (2 Kings 11:1): her son was killed in battle


• Ahaz (2 Kings 16:3): put his sons through fire (assuming this means he killed them)


• Manasseh (2 Kings 21:6): also put his sons through fire (same caveat)


• Zedekiah (2 Kings 25:7):¹ his sons were slaughtered before his eyes


• Job (Job 1:19):* all of his sons and daughters died


• Naomi (Ruth 1:5): her two sons died in Moab


• Ephraim (1 Chronicles 7:22): mourned over his children

^* _{mentioned by the OP Josh Silverblatt}

¹ _{noted by Double AA}

²_{noted by Gary}

³_{noted by DonielF}